Kryptonians are a fictional extraterrestrial race of humanoids within the DC Comics universe that originated on the planet Krypton. The term originated from the stories of DC Comics superhero, Superman. The stories also use "Kryptonian" as an adjective to refer to anything created by or associated with the planet itself or the cultures that existed on it.

Members of the dominant species of the planet Krypton are indistinguishable from humans in terms of their appearance; their physiology and genetics; however, they are vastly different. In some continuities Kryptonians are difficult to clone because their DNA is so complex that human science is not advanced enough to decipher it. The cellular structure of Kryptonians allows for solar energy to be absorbed at extremely high levels. On the planet Krypton, whose parent star has often been depicted as an ancient red supergiant with a relatively low energy output, their natural abilities were the same as humans. When exposed to a young yellow star like Earth's Sun, which is much smaller than their own sun and with a vastly higher energy output, their bodies are able to absorb and process so much energy that it eventually manifests as vast superhuman powers (such as superhuman strength, superhuman speed, invulnerability, flight, x-ray vision, heat vision and superhuman senses).

Almost all Kryptonians were killed when the planet exploded shortly after the infant Kal-El was sent to Earth. In some continuities, he is the planet's only survivor.

Krypton flag
Flag of Krypton
Publication information
PublisherDC Comics
First appearanceAction Comics #1 (June 1938)
Created byJerry Siegel and Joe Shuster
Place of originKrypton
Notable membersKal-El
Lara Lor-Van
Kara Zor-El
Kon-El (half Kryptonian DNA)
General Zod
Doomsday (Prehistoric Kryptonian)
Karen Starr (Powergirl Earth-2)
Bizarro (Kryptonian Clone)
(Val-Zod) Superman

H'El(Kryptonian clone) David Conner/Eradicator Kenan Kong( half Kryptonian half-human)

KAL-LL ( Ultraman) Earth-3

Physiology and powers

Kal-El can lead an alter ego as Clark Kent because Kryptonians appear identical to humans. Also, in both Silver Age and Modern Age continuity, Kryptonians have more than one ethnic group, such as dark-skinned Kryptonians from Krypton's Vathlo Island that resemble Earth humans of Sub-Saharan African descent and a group from the continent of Twenx that resemble Earth Asian and Latino peoples. In the first stories about Superman's origins, all Kryptonians possess on their homeworld the same powers Superman has on Earth. In later depictions, their abilities are attributed to the differences between Earth's gravity and that of Krypton and the different radiation of the stars they orbit. Kryptonians use solar energy from yellow, blue, orange or white stars on the cellular and molecular levels to gain superhuman abilities. The light of dwarf stars, pulsars, and quasars also grants Kryptonians different abilities.[1] Some stories also show that Kryptonians have bioelectric fields that surround their bodies and protect them from harm[2] and which are the means by which Kryptonians fly. Certain individuals (including Conner Kent, Chris Kent, and some Phantom Zone criminals) have sometimes been depicted with "tactile telekinesis". The abilities of Kryptonians evolve and grow more powerful as Kryptonians age and develop.[3]

Mating between Kryptonians and other species is difficult because Kryptonian DNA is so complex as to be nearly incompatible with that of other species. The only notable exception is represented by the original native Daxamite population (the race that bore that name before intermingling with the Kryptonian explorers, who later adapted the name for themselves). Breeding between Kryptonian explorers and this race created a new Kryptonian hybrid race that could interbreed with a larger number of humanoid races—including Earth humans. No other races are yet known to exhibit the same degree of compatibility of the native Daxamites. However, in some continuations humans are not only able to reproduce with Kryptonians, but are able to create fertile offspring with them.[4]

Superpowered Kryptonians are vulnerable to kryptonite, radioactive remnants of Krypton, magic and black holes.

Culture and technology


Kryptonians are a highly culturally and technologically advanced people. Self-grown crystals, both natural and synthetic, which covered the vast majority of their planet's surface gave their homeworld a bluish hue when viewed from space and underlay Kryptonian technology. Relatively small crystals can hold vast amounts of information. The Fortress of Solitude is often portrayed as a recreation of Krypton's surface and a storehouse for all the knowledge that the Kryptonian race had obtained.

A pictographic crest or symbol represents each Kryptonian family, or House; the head of the House usually wears it. According to the Superman movie and sequels, a shape similar to the Latin letter "S" represents the House of El, for example. Superman wears this same symbol on his costume, which therefore serves a dual purpose: it displays his Kryptonian heritage, as well as functioning as the "S" for Superman. Male Kryptonians are identified by hyphenated names, which identify both them and their houses, such as "Jor-El" and "Kal-El" (of the House of El). Female Kryptonians have one given name but take their father's name as their last name. For example, Kal-El's mother is named Lara Lor-Van, taken from her father's name (Lor-Van).

The different Houses were also broken up into a loosely-based caste system as well. The Religious, Artist, Military and Science castes had representation on the ruling council, while the Worker caste did not. The different castes lived in buildings with different architectural styles that represented various styles throughout Krypton's history.

The severe xenophobia of Kryptonian society conveniently explains Kal-El's being the first Kryptonian to leave the planet. Non-superpowered Kryptonians are genetically dependent to their home planet; as such, Kal-El was sent to Earth as a newly conceived embryo within a birthing matrix in order to survive in Earth's atmosphere. He was also devoid of any Kryptonian minerals, because any such minerals would turn to kryptonite upon leaving Krypton's atmosphere.[5] Kryptonians are evolutionarily related to the also-severely xenophobic Daxamites. The Daxamites remain that way up through the 31st century.

Kryptonian law did not believe in capital punishment. Instead, the worst criminals were sent to the Phantom Zone, despite a lack of understanding of the nature of the zone, its danger to the imprisoned and the presence of exits.[6]

Krypton's red sun was named Rao. It was worshiped by the Kryptonians as a deity (albeit in a more scientific and rational way as the giver and sustainer of all life on the planet).

While many Kryptonians wear brightly colored clothes on a daily basis, formal occasions such as funerals and certain council meetings require everyone to wear white. The white formal clothes are often luminescent.


The Kryptonian society, as described in Lois and Clark: The New Adventures of Superman (at least, according to what was seen of its surviving colony) is ruled by aristocracy. Arranged marriages between the members of nobility are common, sometimes as early as birth (as was revealed to be the case with Kal-El), and numerous concubines are allowed. Settling of noble disputes by private duels is fully legal (although highly uncommon) and apparently gives advantages in terms of reputation. Criminals are punished for capital crimes by having their bodies dispersed across the universe (the process is reversible, at least until a certain stage). All Kryptonians are capable of long range telepathic communication. The society is highly pragmatic and the Kryptonians seen were surprised and displeased with Clark's unwillingness to kill. Unlike in the comics, the main clothing color seen is black.

In Supergirl, some of the elements, like their black clothing and telepathy, was retained except that the shields featured a different letter, indicating a different House other than Zor-El's. This shield is worn on the right shoulder. Like in Smallville, a number of criminals imprisoned by the Kryptonians in the Phantom Zone are from other planets and have different powers from those of either Superman or Supergirl.

Language and alphabet


For most of Superman's published history, Kryptonian writing was represented by random, alien-looking squiggles. In the 1970s, E. Nelson Bridwell attempted to rationalize these squiggles into a 118-letter alphabet, referring to the language as "Kryptonese". This standardized alphabet was then used by DC Comics until John Byrne's 1986 "reboot" of the Superman universe.[7]

In 2000, DC introduced a transliteration alphabet for the written language, dropping the "Kryptonese" moniker in favor of the more commonly assumed "Kryptonian." All such writing appearing in the comic books is actually just the language of publication (English in the U.S. and U.K., French in France, etc.) written using this transliteration alphabet to replace the native alphabet with a one-to-one correspondence, in a similar fashion to Interlac in Legion of Super-Heroes.


On the television series Smallville, depictions of the written Kryptonian language began, primarily, with English transliterated into the official Kryptonian transliteration font – mirroring the practice of the comics. The style of these depictions has since evolved over the life of the series from decipherable transliterated writing to a more stylized (and indiscernible) form. In the process, an increasing amount of logographic components have been added with symbols that have been explained to represent words, ideas, or names.

In the episode "Gemini", a character muttering in an unconscious state is revealed to be speaking Kryptonian.

Superman/Batman: Apocalypse

In the Superman/Batman: Apocalypse movie, a mix of gibberish and Esperanto is used to depict Kryptonian dialogue spoken by both Superman and Supergirl.

Man of Steel

The 2013 film Man of Steel featured Kryptonian writing created by graphic designer Kirsten Franson. The mechanics of the writing system (an abugida), as well as the Kryptonian language that it depicts (which was not spoken in the film), were created by Dr. Christine Schreyer, a linguistic anthropologist and assistant professor of anthropology working at the University of British Columbia, Okanagan. The writing can be seen in several places on Superman's suit in the subsequent films Batman v Superman: Dawn of Justice (2016) and Justice League (2017).


On the television series Supergirl the official Kryptonian transliteration font is used for depictions of the Kryptonian language in various scenes throughout the series.

In season 3, episodes 2, 6, 7 and 13 featured a few short lines of Kryptonian dialogue using words from the language created by Darren Doyle, citing the first time a constructed Kryptonian language (as opposed to gibberish) has been spoken in any official media.



In the 1970s and 1980s, details about the Kryptonian calendar as it existed in the Earth-One universe were revealed. The Kryptonian time units were defined as follows:[8]

  • 100 thribo (Kryptonian seconds) per dendar (Kryptonian minute).
  • 100 dendaro (Kryptonian minutes) per wolu (Kryptonian hour).
  • 10 woluo (Kryptonian hours) per zetyar (Kryptonian day).
  • six zetyaro (Kryptonian days) per fanff (Kryptonian week).
  • 73 zetyaro (Kryptonian days) per lorax (Kryptonian month).
  • 438 zetyaro (Kryptonian days) per amzet (Kryptonian year).
  • 73 fanffo (Kryptonian weeks) per amzet (Kryptonian year).
  • six loraxo (Kryptonian months) per amzet (Kryptonian year).
  • The six loraxo (months) were: Belyuth, Ogtal, Ullhah, Eorx, Hefralt and Norzec.[9]

(Note: In the Kryptonian language, the suffix "o" indicates the plural form of a noun.)

According to one story, in which the Phantom Zone prisoner Quex-Ul had served his full sentence, 18 Kryptonian sun-cycles (amzeto) is about 25 Earth years.[10] It can be demonstrated that one Kryptonian sun-cycle is approximately 1.37 Earth years, as follows:

  • Superman was born on 35 Eorx 9998,[11] which occurred on February 29[12] in the Earth calendar.
  • Krypton exploded early[13] on 39 Ogtal 10000,[14] which occurred on June 16[15] in the Earth calendar (Superman arrived on Earth two days later, on June 18[16]).
  • Therefore, there were 734 Kryptonian days (1.676 Kryptonian years) between the two events.
  • Since 18 Kryptonian years is about 25 Earth years, then there were approximately 2.3 Earth years between the two events.
  • The exact number of days between February 29, and June 16 two years later, is 838 (or 2.294 years).
  • Thus, 1.676 Kryptonian years equals 2.294 Earth years, or 1 Kryptonian year equals roughly 1.37 Earth years.

Using this ratio of 1.37 Earth years per Kryptonian year (amzet), and ignoring any potential Kryptonian leap day and any differences in time of day, one can approximate other units of time:

  • 1.37 years per amzet
  • 0.99 seconds per thrib (31,556,952 seconds/year * 1.37 years/amzet * one amzet/43,800,000 thrib)
  • 1.65 minutes per dendar (525949.2 minutes/year * 1.37 years/amzet * one amzet/438,000 dendar)
  • 2.74 hours per wolu (8765.82 hours/year * 1.37 years/amzet * one amzet/4,380 wolu)
  • 1.14 days per zetyar (365.2425 days/year * 1.37 years/amzet * one amzet/438 zetyar)

Major events in the Kryptonian calendar include:[17]

  • Jor-El and Lara were married on 47 Ullhah 9997.
  • The city of Kandor was stolen by Brainiac on 33 Ogtal 9998.
  • Kal-El (Superman) was born to Jor-El and Lara on 35 Eorx 9998.
  • The Phantom Zone became an official method of punishment, and Jax-Ur became its first prisoner, on 67 Eorx 9999.
  • Kal-El's pet dog, Krypto the Superdog, was lost in space on 54 Belyuth 10000.
  • Jor-El launched the Phantom Zone projector into space on 30 Ogtal 10000.
  • Lar Gand of Daxam landed on Krypton and met Jor-El on 34 Ogtal 10000.
  • Kal-El was sent in an interstellar rocketship towards Earth and Krypton exploded on 39 Ogtal 10000.



When Krypton was destroyed, it was thought that the entire Kryptonian race was destroyed. This was untrue – the scientist Jor-El managed to send his newborn son, Kal-El, off-planet to Earth right before Krypton's demise. Kal-El grew up on Earth as Clark Kent and eventually discovered his Kryptonian origins. Superman's cousin Supergirl also survived Krypton's destruction, as did Kristin Wells, who had been on the run in space at the time of the planet's destruction. Kryptonian survivors of alternate worlds, such as Power Girl (Kara Zor-L) and the canine Krypto the Superdog, also reside on Earth. Kryptonians General Zod and Ursa had been imprisoned within the Phantom Zone prior to Krypton's destruction and even went on to have a child, who would later be adopted as Christopher Kent.

The Kryptonian city Kandor was also spared from destruction, as it was shrunken and collected by Brainiac. Kryptonian people live there in standard but microscopic, non-superpowered lives. Also, the inhabitants of the planet Daxam are descendants of Kryptonians who long ago ventured into space and settled on another planet. As such they possess similar powers and abilities to traditional Kryptonians when exposed to a yellow sun.

The monster Doomsday is the last of the prehistoric Kryptonians.

On Earth-Two, the Kryptonian Val-Zod (Superman) survive Krypton, along with Kara Zor-L/Karen Starr (Power Girl).


In Superman, teenage Clark discovers who he is in the Fortress of Solitude, where a hologram of Jor-El tells him, "You are the only survivor of the planet Krypton." This remark appears to prove untrue in Superman II, as prisoners of the Phantom Zone, such as General Zod, also survive the destruction of Krypton. However, Zod and his lieutenants only survived because they were at that time incarcerated within the Phantom Zone and were not in fact on Krypton at the time of its destruction. The film Supergirl shows inhabitants of Argo City who also survived, including Superman's cousin Supergirl. In Superman Returns, it is revealed that Clark is father to the half-Kryptonian child Jason White.

In Man of Steel, Kryptonians are depicted as a genetically-engineered race of beings. They are artificially grown in "genesis chambers" using information from the Codex, a skull containing the entire genetic code of the Kryptonian race. With this method, Kryptonians are designated pre-determined roles in society at their conception – for example, Jor-El is a Scientist, whereas General Zod is a Warrior. In ancient times, they were a race in the midst of an era of expansion, travelling to other worlds via scout ships in order to colonize them. Kal-El is the first (and technically, last) naturally-born Kryptonian in centuries, as Jor-El and Lara believed that Krypton had lost the freedom of choice and wanted their son to choose to become who he wanted to be. As in the comics, Kal-El's powers are depicted as being superior to other Kryptonians, due to his spending a far greater period of time exposed to Earth's yellow sun and atmosphere, though some have an advantage over him in terms of combat experience (e.g. Zod, Faora and Nam-Ek). While the other Kryptonians receive great strength and speed from Earth's sun, they require solar-suits to regulate the radiation and avoid being stricken by pain. In addition, it is shown that without some form of training, Kryptonians are left vulnerable to their own abilities, as the case with Zod when Superman destroyed his solar-visor and caused him to develop a sensory overload.


In Lois & Clark: The New Adventures of Superman, it was shown that a sizable Kryptonian colony (called New Krypton) has survived the destruction of the planet. Clark had to go to the colony as its official ruler, but returned to Earth soon after.

In Smallville, Clark Kent initially believes himself to be the last survivor of Krypton. However, his father Jor-El's memories remains sentient in the mysterious Kawatche Caves and Fortress of Solitude an disembodied AI, and the disembodied spirit of Zod is similarly sentient albeit trapped in the Phantom Zone. In Season Five, Clark discovers that the Disciples of Zod: Nam-Ek & Aethyr and a Kryptonian artificial intelligence: Brain-Interactive-Construct aka Brainiac arrive on Earth, serving Zod's trapped spirit. In Season Six, Clark discovers his father's assistant Raya was spared by being placed in the Phantom Zone, with her body intact. She helped Clark on Earth until her death a short time after her escape from the Phantom Zone. Season Seven introduces Kara Zor-El, having been sent to Earth at the same time of Clark but trapped in suspended animation since then; later, through schemes put into practice before his death, Clark's uncle Zor-El and mother Lara are resurrected with powers intact for a time. Later, it is revealed that another Kryptonian, the scientist Dax-Ur, has been living on Earth for over a hundred years, using blue kryptonite to render himself powerless, and has even fathered a son with his human wife. Dax-Ur is killed soon after by Brainiac. In Season 8, it is revealed that Zod's wife Faora, also a disembodied wraith, was sent into the Phantom Zone with her husband, but not before they genetically engineered their son, fusing genetic material taken from the most violent Kryptonian life-forms with their own. The child was attached to Clark's ship in the form of a cocoon; on Earth it assumed a human form and became known as Davis Bloome, but would periodically assume its true form: the monster Doomsday. In the season finale, Zod makes his first full bodied appearance on the series, along with a large number of other Kryptonians who are later revealed to be clones created as part of an old experiment. Initially powerless due to their cells having been treated with blue kryptonite radiation, these clones later gain powers when Clark is forced to provide Zod with a sample of his blood to heal him after he is shot, Zod using this blood to empower his followers. The clones are relocated to a new world that they designate 'New Krypton' at the conclusion of Season Nine, with Clark Kent remaining on Earth and Zod being sent to the Phantom Zone to merge with his original self when the clones learn that Zod killed his lover Faora for objecting to his plans.

In Superman: The Animated Series and later Justice League Unlimited, the only survivors of Krypton are Clark and two Phantom Zone criminals (Jax-Ur and Mala, introduced in "Blasts From the Past", parts 1 and 2). Kara In-Zee, alias Supergirl, is the lone survivor of Argos, Krypton's sister planet knocked out by the planet's explosion; however, in the Justice League Unlimited episode "Fearful Symmetry", Doctor Emil Hamilton, who has examined Superman, calls her DNA "Kryptonian", indicating that Argosians are genetically related to Kryptonians. Failed clones of Superman (the mentally handicapped Bizarro and the monstrous Doomsday) and Supergirl (the sociopathic Galatea) are later created.

In Legion of Super Heroes, the citizens of Kandor, Superman and his clone Superman-X, might all be considered surviving Kryptonians.

In Supergirl, another Kryptonian House was revealed, this one led by Alura Zor-El's twin sister, General Astra. Her shield featured a "Q" on her uniform, indicating that besides her niece Kara, she and her house survived the destruction of Krypton, along with the Kryptonian prisoners sentenced by Alura (and who are working under Astra) that crash-landed on Earth via the prison ship Fort Rozz. One of Astra's operatives, Vartox, was ordered to sabotage the Department of Extra-Normal Operations by causing a plane crash that was thwarted by Supergirl (when she realized her sister Alex Danvers, a DEO member, was on board), and to alert Astra that Kara survived the explosion and now has come into discovering her powers. In "Hostile Takeover" more Kryptonians, led by Astra's husband Non, surfaced on Earth preparing for take over of the planet, and came prepared to counter the kryptonite weapons with anti-kryptonite body armor.

Video games

In the One Earth Regime universe featured in Injustice: Gods Among Us and Injustice 2, Krypton is attacked by the rogue Coluan scientist Brainiac. The Kryptonians find themselves at the mercy of Brainiac's forces and Kara Zor-El barely escapes the destruction of Argo City. Her mother Alura rescues her from Brainiac's drones and reveals she and Jor-El have both been working to create two ships, one for Kara and the other for her baby cousin Kal-El. Kara and Kal-El escape Krypton as it is destroyed by Brainiac, though Kara's ship is damaged by the explosion knocking it off course and putting Kara into hyper sleep. Kal-El is raised on Earth as Clark Kent and becomes Superman. As Superman he forms the Justice League and befriends Batman. However, the Joker ends up tricking Superman into attacking Lois Lane, who was pregnant with Superman's child. This results in her death which triggers a nuclear explosion that destroys Metropolis. Superman murders the Joker and establishes a tyrannical government called the One Earth Regime. However, Batman, opposed to Superman's methods, forms the Insurgency to overthrow the Regime. With the aid of the Justice League from another universe, the Regime is defeated and the Insurgency works to rebuild. However, Superman's ally, Black Adam, finds Kara's ship and brings her to Earth. Together they free Superman's current lover Wonder Woman from imprisonment on Themyscira. Wonder Woman and Black Adam hide the tyrannical nature of the Regime from Supergirl and train her to use her powers in secret, though Brainiac attacks Earth after being alerted to Kal-El's survival due to his Regime's supporting the Sinestro Corps. in a war with the Green Lantern Corps. Supergirl and the Regime try to break Superman out of prison, but are stopped by Batman and his allies, though Batman decides to release Superman, calling a temporary truce between the Regime and the Insurgency to combat Brainiac. During Brainiac's attack on Metropolis, Supergirl witnesses Wonder Woman's brutal attack on their ally Harley Quinn after Harley tried to stop Wonder Woman from killing the Cheetah, as it violated Batman's no-killing policy. Supergirl saves Harley's life and confronts her cousin at the Fortress of Solitude. Supergirl is horrified to learn her cousin approves of Wonder Woman's actions, though he believes it would be best to deal with Harley after Brainiac is dealt with. Supergirl compares his methods to General Zod's and briefly fights Superman and his allies, though Brainiac's attack forces them to focus on dealing with him first. Superman and Supergirl work together to attack Brainiac's ship, but are stopped by its barrier. Brainiac destroys Metropolis reminding Superman of his past failure, causing him to attack the ship with all his might, only to be seemingly killed by Brainiac. Batman confronts the grieving Supergirl and reveals that Superman was once his friend. Believing Kara is the last surviving Kryptonian, Brainiac offers to spare Earth if they hand over Kara Zor-El as he wishes to study the effects of yellow sun radiation on Kryptonian cells, though Batman refuses. Batman, his allies and the remaining Regime members manage to overload the shields protecting Brainiac's ship. Batman and Supergirl manage to infiltrate the ship, but Supergirl is captured, though Batman discovers that Superman is still alive and the two join forces to defeat Brainiac and free Supergirl. However after Brainiac's defeat, Superman and Batman argue over Brainiac's fate, leading to an end to their truce. Despite Brainiac being responsible for Krypton's destruction, Supergirl sides with Batman and choose to spare Brainiac so he can help them restore the worlds and cities he has collected. Supergirl tries to reason with her cousin by telling him of how his father opposed General Zod, only for Superman to reveal he agrees with Zod's methods, believing that if Jor-El had been more like Zod, then he would have been able to save Krypton. In Superman's story mode ending, Batman is defeated, though Superman spares him due to not wanting him to become a martyr. Superman merges with Brainiac's ship and imprisons Supergirl in his former cell. He reveals that all the cities have been restored and Earth is once again under the control of the Regime. Superman reveals there is still a place for her and that he is creating an army using beings freed from Brainiac's collection. Supergirl refuses to join him, though Superman reveals he has used Brainiac's technology to turn Batman into a brainwashed slave and threatens to do the same to Kara if she continues to resist. In Batman's story mode ending, Superman is defeated by Batman after Kara leads him to the Batcave. Batman apologizes to Kara for not being able to save her cousin. Superman is taken prisoner and Batman decides to imprison him in the Phantom Zone. Superman vows to escape and is hurt by Supergirl's betrayal. Supergirl reveals to Batman the House of El's S symbol is supposed to be a symbol of hope; though her cousin turned it into a symbol of fear, Batman, however, states that its meaning is determined by the one who wears it and tells her of how he and Superman used to fight for justice as members of the Justice League, before offering her a chance to do the same, having earned Batman's trust. In Supergirl's character ending, she joins Batman's Justice League, working with them to restore Kandor and cities collected by Brainiac. Supergirl notes that while she could not save her cousin, it will not stop her from trying to bring people hope. She is last shown flying with other Kryptonian survivors in the sky of a restored Kryptonian city. In Sub-Zero's ending, Superman joins forces with Kryptonian criminals General Zod, Ursa and Non after escaping the Phantom Zone through a portal accidentally created by the Batman's Justice League while trying to create a portal to Earthrealm. Sub-Zero confronts Superman, while Supergirl faces General Zod, and Batman battles Ursa and Non. In Injustice: Gods Among Us, General Zod appears as a DLC character, though he plays no role in the game's story. In Injustice 2, Power Girl appears as a alternate character skin for Supergirl, though she does not appear in the main story and originates from Earth-2.

See also


  1. ^ Superman: Earth One
  2. ^ e.g., All-Star Superman
  3. ^ Smallville
  4. ^ Superman Annual #14 (2009)
  5. ^ All-Star Superman
  6. ^ The Phantom Zone mini-series, 1993
  7. ^ Turniansky, Al. "The Kryptonese Alphabet: A Real-World Historical Tale", in Eury, Michael. The Krypton Companion (TwoMorrows Publishing, 2006), p. 32.
  8. ^ Krypton Chronicles #1-3 (Sept.-Nov. 1981) and elsewhere
  9. ^ Letters page of Superman #254 (July 1972)
  10. ^ Superman #157 (Nov. 1962)
  11. ^ Action Comics #429 (Nov. 1973), World Of Krypton #2 (Aug. 1979) and elsewhere
  12. ^ World's Finest Comics #235 (Jan. 1976), Superman Annual #11 (1985) and elsewhere
  13. ^ Superman's Pal Jimmy Olsen #98 (Dec 1966)
  14. ^ World Of Krypton #3 (Sept. 1979) and elsewhere
  15. ^ The "1976 Super DC Calendar" and elsewhere
  16. ^ Superman #263 (April 1973), World's Finest Comics #235 (Jan. 1976) and elsewhere
  17. ^ World Of Krypton #1-3 (July-Sept. 1979) and elsewhere

External links

Chris Kent (comics)

Christopher Kent (Lor-Zod) is a fictional superhero appearing in American comic books published by DC Comics. The character first appeared in Action Comics #844 (Dec. 2006) and was created by Richard Donner, Geoff Johns, and Adam Kubert.

As the biological son of General Zod and Ursa, he is a Kryptonian who becomes the foster son of Clark Kent (Superman) and his wife Lois Lane.


Daxam is a fictional planet within the DC Universe. It is home to a race called the Daxamites, who are descended from Kryptonian colonists.


Dev-Em is a fictional character who appears in DC Comics. He first appeared in Adventure Comics #287 (June 1961), created by Jerry Siegel and George Papp. Various versions of the Dev-Em character has appeared over the years in Legion of Super-Heroes related comic books.

The original Dev-Em was a Kryptonian juvenile delinquent that attacked Superboy; after being thwarted by Superboy, Dev-Em traveled to the 30th century where he became an occasional ally of the Legion. Once DC Comics re-wrote their history with Crisis on Infinite Earths Dev-Em was changed into a Daxamite instead of a Kryptonian. Post-Infinite Crisis, he was once again made a Kryptonian; a criminal sentenced to the Phantom Zone.

Dev-Em makes his live action debut in the television series Krypton, portrayed by Aaron Pierre.

Doomsday (DC Comics)

Doomsday is a fictional supervillain appearing in American comic books published by DC Comics, commonly as the deadliest foe of Superman, as well as the Justice League. Created by writer-artist Dan Jurgens, the character had a cameo appearance in Superman: The Man of Steel #17 (November 1992) and made his first full appearance in Superman: The Man of Steel #18 (December 1992).

Doomsday ranked as #46 on IGN's list of the Top 100 Comic Book Villains of All Time. He is best known as the only character who supposedly killed Superman in combat in The Death of Superman story arc. The character appears in the 2016 film Batman v Superman: Dawn of Justice, voiced and performed by Robin Atkin Downes through motion-capture.

Eradicator (comics)

The Eradicator is the given name of four different fictional comic book characters, appearing in books published by DC Comics. The first iteration was an antihero character appearing in the Flash series of comics. The second was a superhero (and sometimes supervillain) having a recurring role in Superman stories, and the remaining two first appeared in 2013 and 2017, respectively.

The Flash Eradicator was created by Carmine Infantino and Cary Bates and first appeared in The Flash #314. The first Superman character was created by writer Roger Stern and artist Curt Swan, and first appeared in Action Comics Annual #2 (1989).


Faora is the name of several fictional female supervillains appearing in American comic books published by DC Comics, commonly in association with Superman. All of them have some connection to Superman's home planet of Krypton. The character was created by Cary Bates and Curt Swan, and first appeared in Action Comics #471 (May 1977). Most commonly, Faora is an ally and sometimes the wife and/or lover of Superman's Kryptonian nemesis General Zod.


Flamebird is the name used by six different fictional comic book characters who have appeared in books published by DC Comics, specifically from the Superman and Batman mythos.

The primary character to use the Flamebird name is Bette Kane, who was the pre-Crisis hero Bat-Girl. However, the original pre-Crisis Flamebird was Jimmy Olsen, who was later succeeded by a Kandorian scientist. Post-Crisis a Kryptonian hero used the name Flamebird, and in a "One Year Later" storyline, so has Kara Zor-El.

Flamebird characters are also often associated with characters who use the name Nightwing.

Fortress of Solitude

The Fortress of Solitude is a fictional fortress appearing in American comic books published by DC Comics, commonly in association with Superman. A place of solace and occasional headquarters for Superman, the fortress is typically depicted as being in frozen tundra, away from civilization. Its predecessor, Superman's "Secret Citadel", first appeared in Superman #17, where it was said to be built into a mountain on the outskirts of Metropolis. By issue #58 (May–June 1949) it is referred to as the Fortress of Solitude, seems at a glance to be a freestanding castle, and is said to be located in a "polar waste". When the Fortress reappears in 1958 and for the first time takes center stage in a story ("The Super-Key to Fort Superman", Action Comics #241), it is again an underground complex in a mountainous cliffside.

Traditionally, the Fortress of Solitude is located in the Arctic, though more recent versions of the Superman comics have placed the Fortress in other locations, including the Antarctic, the Andes, and the Amazon rainforest. The general public in Superman's world is either unaware or at best only vaguely aware of the existence of the Fortress, and its location is kept secret from all but Superman's closest friends and allies (such as Lois Lane and Batman). A trademark of the Fortress is that it contains a memorial statue of Jor-El and Lara, Superman's Kryptonian parents, holding a large globe of Krypton. Although Superman has living quarters at the Fortress, his main residence is still Clark Kent's apartment in Metropolis. The arctic Fortress of Solitude concept was first created for pulp hero Doc Savage during the 1930s.

General Zod

General Zod is a fictional supervillain appearing in comic books published by DC Comics, commonly in association with Superman. The character, who first appeared in Adventure Comics #283 (April 1961), was created by Robert Bernstein and initially designed by George Papp. As a Kryptonian, he exhibits the same powers and abilities as Superman and is consequently viewed as one of his greatest personal enemies alongside Lex Luthor. Zod is canonically one of Superman’s oldest nemeses.

In Superman (1978) and Superman II (1980), Terence Stamp portrayed the character, which Total Film later ranked as #32 on their "Top 50 Greatest Villains of All Time" list in 2007. Pop-culture website ranked General Zod as #30 on their list of the "Top 100 Comic Book Villains", asserting that "Stamp is Zod" (emphasis in original). The character was played by Michael Shannon in Zack Snyder's 2013 film Man of Steel, by Callum Blue in Smallville, by Mark Gibbon in Supergirl, and by Colin Salmon in Krypton.

H'El on Earth

"H'El on Earth" is a Superman crossover story arc published by DC Comics. Written primarily by Scott Lobdell, it details the appearance of H'El, a mysterious Kryptonian.


Jax-Ur is a fictional character appearing in comic books published by DC Comics, usually as an adversary of Superman. Created by writer Otto Binder and artist George Papp, the character first appeared in Adventure Comics #289 (October 1961).


Jor-El, originally known as Jor-L, is a fictional character appearing in comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, Jor-El first appeared in a newspaper comic strip in 1939 with Superman.

A Kryptonian, Jor-El is Superman's biological father, the husband of Lara, and a leading scientist on the planet Krypton before its destruction. He foresaw the planet's fate but was unable to convince his colleagues in time to save the inhabitants. Jor-El was able to save his infant son Kal-El (Superman) by sending him in a homemade spaceship towards Earth just moments before Krypton exploded. After constructing his Fortress of Solitude, Superman honored his biological parents with a statue of Jor-El and Lara holding up a globe of Krypton.

Kandor (comics)

Kandor () is a fictional city appearing in American comic books published by DC Comics.

Kandor is the former capital city of the planet Krypton and is best known for being miniaturized and then stolen by the supervillain Brainiac. Upon its recovery by Superman, it has been kept and monitored in the Fortress of Solitude.

Krypton (comics)

Krypton is a fictional planet appearing in American comic books published by DC Comics. The planet is the native world of Superman and is named after the element Krypton. The planet was created by Jerry Siegel and Joe Shuster, and was first referred to in Action Comics #1 (June 1938). The planet made its first full appearance in Superman #1 (summer 1939).

Krypton is also the native world of Supergirl, Krypto the Superdog, and Power Girl (in her case, an alternate-universe version designated "Krypton-Two"). It has been consistently described as having been destroyed shortly after Superman's flight from the planet, although the exact details of its destruction vary by time period and writers. Kryptonians were the dominant species on Krypton.

Non (comics)

Non is a fictional supervillain appearing in American comic books published by DC Comics. He first appeared in the 1978 film Superman: The Movie portrayed by actor and former boxer Jack O'Halloran. The character made his comic book debut in Action Comics #845 (January 2007). An accomplice of General Zod and an adversary of the superhero Superman, he is typically depicted as having been imprisoned in the Phantom Zone, along with Zod and Ursa, among whom he is portrayed as the strong and silent muscle.

Phantom Zone

The Phantom Zone is a fictional prison dimension appearing in American comic books published by DC Comics, commonly in association with stories featuring Superman. It first appeared in Adventure Comics #283 (April 1961), and was created by Robert Bernstein and George Papp. It was frequently used in the Superman comics before the continuity was rebooted in the 1980s, after Crisis on Infinite Earths, and has appeared occasionally since.

Superboy (Kon-El)

Superboy (also known as Kon-El or Conner Kent) is a fictional superhero appearing in American comic books published by DC Comics. A modern variation on the original Superboy, the character first appeared as Superboy in The Adventures of Superman #500 (June 1993), and was created by writer Karl Kesel and artist Tom Grummett.From the character's debut in 1993 to August 2003, Superboy was depicted as a genetically-engineered metahuman clone of human origin designed by Project Cadmus as a duplicate and closest genetic equivalent of Superman. The character was retconned in Teen Titans #1 (September 2003) as a Kryptonian/human hybrid of Superman and Lex Luthor. After DC's The New 52 initiative that relaunched the company's comics continuity in 2011, the character of Superboy was revamped as a clone derived from three DNA sources and designed by Project N.O.W.H.E.R.E. as a recreation of Jon Lane Kent, the biological son of Superman and Lois Lane from a potential future timeline. After the character's death in the Superboy series, Kon-El was replaced by Jon Lane Kent in subsequent stories. After the events of Superboy #34 Kon-El returns as Superboy again.

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