Karkat Vantas

Karkat Vantas, also known by his Trollian handle carcinoGeneticist, is one of the Trolls. His associated zodiac sign is Cancer (♋). He types in light gray with all caps and near-perfect syntax. Karkat is the leader of the Red Team.

His Trollian handle is a play on the medical term "carcinogenesis" which is the development of cancer in the body, and "carcinology", the study of crustaceans. Vantas is a cancer treatment pill, and Karkat is "Karkata", the Hindu astrological equivalent of Cancer, minus one letter. His online handle is particularly nefarious sounding, implying genetic engineering and carcinogenic factors.

His weapon of choice appears to be a sickle— his Strife Specibus reflects this as sickleKind. This is most likely to contrast or even complement John's hammerKind, as the hammer and sickle are the symbols of communism.

Biography
Karkat was introduced in Act 3 as an incredibly rude individual who trolls Jade, which earns him a place in her Trollslum. He is aware of what the kids do during their adventure via Trollian. He is convinced that Jade will fuck everything up and seems to want a different outcome, asking Jade "IS THERE NOTHING I CAN DO TO CHANGE YOUR MIND?" and later providing information on Sburb and giving advice to John on how he should go through his adventure. It becomes clear that he had hoped to deter Jade from sending a package to John, which would lead to disastrous results for both the kids and the trolls. She ignores his warnings and sends the package that Jack Noir later uses to kill the Black Queen.

In Act 4, Karkat later contacts John, and tells him that they will be friends in the future. He mentions that he is trolling linearly backwards along the kids' timeline, unlike the forward motion of Terezi Pyrope and the random pathways of the other trolls. Later on, he and John have a discussion on movie titles, and it is implied that Karkat's civilization is much older than John's since they ran out of good movie titles over the course of thousands of years. John also reminds Karkat that he wants to talk to Jade and to calm down if he contacts him any earlier in the timeline so as to prevent any time paradoxes from occurring. He also finds out that John is in "cahoots" with Terezi and gets pissed and asks John to send along a nasty message to her. Later, Karkat gives John information on the geography of the Incipisphere and the purpose of Sburb.

When John arrives in the Ectobiology Lab and creates the Paradox Clones, Karkat explains that every player who plays Sburb will, without exception, be their own clone. Through the actions of one player (in the troll's case, Karkat), all players in that Sburb session will have been created as clones of themselves, with the originals being clones; essentially, the information used to create the clones comes from the clones themselves. Karkat was the troll's player who created the trolls and possibly their Lusii. With twelve trolls, and 11-12 Lusii, this means he had to take care of anywhere from 12 to 24 clone babies. Apparently, he was quite unsettled by all of this.

Midnight Crew Intermission
At the end of the Intermission, Spades Slick finds a monitor with 12 screens. The one illuminated screen shows Karkat. He is shown engaged in Sgrub, as he has a Kernelsprite, a Cruxite Dowel, and some sylladex cards in his room. Slick begins to communicate with Karkat in the same way as the exiles from the kids' session.

Hivebent
Act 5 opens with the beginning of a new adventure, with Karkat in his respiteblock. Karkat was not given a name before his sixth wriggling Day (his thirteenth birthday), just like John Egbert. He is initially named Bulgereek Nookstain using the inverted Daedric Alphabet, but chops the name entry box in half—much like Dave, Karkat doesn't put up with that bullshit.

Karkat is the leader of the Red Team with Terezi Pyrope as his server player. Sburb has designated him the Knight of Blood, his planet the Land of Pulse and Haze. Karkat wields an alchemised sickle: Homes Smell Ya Later, in keeping with his sickleKind Strife Specibus. he's shown using a sickle that appears similar to a regisword. Karkat, during the course of the game, runs across and forms an alliance with Jack Noir to exile the Black Queen. Beforehand, his sharp tongue gets him stabbed by Jack, revealing his candy red blood color and helping him form a bond of sorts with his assailant, both of which have the same color blood.

Karkat starts distributing memos through Trollian's time-travel memo feature to try to order people around, but these memos end up hopelessly muddled by various interjections from the other trolls (and even Karkat himself in other points of the timeline). He witnesses the last moments of Sollux Captor this way, as he was gruesomely killed by a psychic shockwave emitted from Feferi's Lusus, but thinks he's joking. He becomes very distraught once he sees his friend's lifeless body, and then disgusted as Feferi kisses him.

Personality
Karkat is a crab in more ways than one. He constantly insults others in the style of a stereotypical internet troll, supporting his arguments with what seems to be empty logic. In keeping with the crabby theme of his personality, he never smiles and he can also be seen screaming or pounding his fists against his keyboard when talking to the other trolls. He is not particularly patient as when explaining himself, he makes even his most sound advice appear to be random insults and he becomes visibly aggravated both times John re-enacts a scene from Con Air. Following this, he also gets in an argument with Terezi; they don't seem to get on well as Karkat gets annoyed when he finds that she and John are in 'cahoots' and they seem to be trolling each other through the kids. Somewhat similar to Jack Noir, Karkat is ruthlessly ambitious and will grasp at any opportunity for power, but he just doesn't have the subtlety of his troll compatriots and ends with the sharp end of the stick more than once. Despite his flippant demeanor, he also seems to care quite deeply for his friends' well being, judging from his tearful reaction to Sollux's apparent death, as well as his seemingly genuine desire to help Eridan and Tavros with their relationship issues with Feferi and Vriska, respectively. Towards the end, Karkat seems to show a softer side that hasn't really been shown before. In his final memo, future Karkat leaves a rather emotional story shortly before Kanaya responds to it. At this point he treats her in a friendly and polite manner, something that really hasn't done with anyone before.



Despite his rudeness, he seems to be broadly on the same "team" as the kids, giving advice to John which helps him advance instead of acting as one of Homestuck's villains. Karkat and John seem to have a strained kind of friendship; John describes them as being "reverse anti-mutual friends". They have a mutual interest in movies (even if they are staggeringly different in their own dimensions), and Karkat's chumhandle, CarcinoGeneticist is quite similar to John's-- EctoBiologist. This may indicate Karkat is a foil to John. His official introduction revealed that he is actually very similar to John, at least in interests and basic role in the story. He has a passion for ridiculously terrible romantic movies and romcoms and a profound fascination with the workings of troll romance. He likes to program computers but is notoriously pretty awful at it. Act 5 begins on his "Wriggling Day" much as John's story also began on his birthday.

Unlike other trolls, Karkat doesn't "wear his blood color on his sleeve", in either the figurative OR literal sense, and is very defensive when asked about it. When he is stabbed by Jack Noir, it turns out his blood is bright red, a mutation among trolls, one that he is extremely ashamed of. He and Jack Noir form an alliance when it is revealed that they have the same color of blood, a revelation that shocks Karkat. He makes sure to clean up after himself so well that

Relationships
Despite being the grouchiest troll in the whole planet, Karkat relates well to people, possibly because he's not particularly unstable - he will always hate you evenly. He believes that showing many kinds of pity is the best way to have the capacity to hate. He usually stops insulting and whining whenever the other troll mentions he or she has some kind of significant problem that isn't worth making fun of. He is the go-to guy for several of the trolls with romance issues, like Tavros and Eridan, and even unwittingly advises Vriska, as well as Kanaya. Ironically, Karkat admits that he has problems with relationships, particularly blackrom, and thinks he sets his standards too high. His inclinations towards redrom are strictly private.

He is friends with Gamzee, once referring to him as the "worst best friend ever". He also has a friendly rivalry with Sollux, and is visibly shaken when he witnesses Sollux's death.

Nepeta most likely has a redrom-crush on him according to her Shipping wall, possibly due to their mutual interest in Troll Relationships, but Karkat appears to be unaware of both of these.

Terezi likes nothing more than pestering him in every way and form. Karkat apparently has a Matespritship relation toward Terezi, as seen in this conversation. He seems curious whenever she calls him cute or adorable, and at the end of their conversation he shyly responded to Terezi's <3 with his own, after she signed off.

Vriska hate-flirts with Karkat on occasion, but is most likely just messing with him.

Karkat may also be friends with Eridan, despite the latter's stated desire to kill all land dwellers. Such friendship appears to be fueled by the fact Karkat is very good at giving advices on relationships, and that Eridan needs them constantly. He is not fond of Equius or Vriska, calling them 'the only bigger asshole than him' and 'the most vile backstabbing sociopath who ever lived', respectively.

Lusus/Kernelsprite
Karkat's custodian is a towering, bipedal crab monster with a taste for chilled roe cubes. It was killed when Karkat's computer exploded as a result of running Sollux Captor's Mobius Double Reacharound Virus, thereby implementing the curse (if curses are a real thing) that leads to the death of the other trolls' lusii as well. An interesting note is that it died concussively, leaving Karkat's anonymity intact by not bleeding.

Karkat later prototyped his dead lusus into his Kernelsprite.