Sergei Kravinoff (Сергей Кравинов) is a Russian immigrant, the son of the
aristocrat Nikolai Kravinoff who fled to the United States with his family in 1917 after the
executions of Russian nobility by the February Revolution and subsequent collapse of the reign of Tsar
Nicholas II. Kraven is a maniacal
big-game hunter who seeks to defeat
Spider-Man to prove that he is the greatest hunter in the world. Unlike other hunters, he typically disdains the use of guns or
bow and arrows, preferring to take down large dangerous animals with his bare hands. He also lives by a code of honour of sorts, choosing to hunt his game fairly. He consumes a mystical serum to give himself enhanced strength and dramatically slow the
aging process. Kraven was trained as a hunter largely by a mysterious man named Gregor, a mercenary who once battled
Ka-Zar. Kraven was, at one point, the lover of the
voodoo priestess
Calypso. He is contacted by his half-brother the
Chameleon to defeat Spider-Man. He leads Spider-Man to
Central Park with the help of the Chameleon, who disguises himself as Kraven to use himself as a decoy while the real Kraven ambushes the hero. However, despite Kraven having weakened Spider-Man with a poisonous dart, Spider-Man prevails in the end. Spider-Man proves a frustrating quarry because Kraven continually underestimates the superhero's resourcefulness. Kraven becomes a founding member of the
Sinister Six when he accepts
Doctor Octopus's offer to form a team to fight Spider-Man. They capture
Aunt May and
Betty Brant. He attacks Spider-Man in
Central Park with three
tigers. Spider-Man fights off the attackers and secures the next clue to where Aunt May and Betty Brant are being held. After Aunt May and Betty Brant are rescued, Kraven the Hunter and the rest of the Sinister Six are arrested by the police. While in the
Savage Land, Kraven the Hunter finds
Gog in a spaceship that he stumbles upon. Realizing how useful Gog can be, Kraven the Hunter decides to use him in a plot to conquer the Savage Land. After kidnapping the visiting
Gwen Stacy from a camp in the Savage Land, Kraven and Gog battle the heroes Ka-Zar and Spider-Man. While Ka-Zar deals with Kraven, Spider-Man defeats Gog by luring him into a patch of quicksand, which he sinks to the bottom of.
''Kraven's Last Hunt'' Determined to end his life as he becomes older, frustrated with his failing health and continuing failure to defeat Spider-Man, Kraven sets out a final hunt for Spider-Man. After capturing Spider-Man, he shoots him with a coma-inducing drug and buries him alive on his estate. To complete his victory, he attempts to become Spider-Man's clear superior by impersonating him in a brutal vigilante campaign and capturing
Vermin, the one foe Spider-Man had never been able to defeat on his own (Spider-Man's last battle with Vermin required
Captain America's assistance). After Spider-Man emerges from his grave two weeks later, Kraven explains his actions to him and sets Vermin free. Spider-Man goes after Vermin to prevent his killing again. Kraven leaves a final
confession of his crimes against Spider-Man and then commits suicide. Because of his suicide, his soul is unable to find rest until Spider-Man confronts his risen corpse on Kraven's behalf.
The Gauntlet and Grim Hunt Across "
The Gauntlet" and "
Grim Hunt", Kraven is resurrected by his ex-wife Sasha Kravinoff and their children with a
dark magic ritual using the blood of Spider-Man. Thoroughly unhappy and enraged with having been bestowed an unwanted revival, Sergei is shown to now be explosively
psychopathic and cold towards his family, beating his son Vladimir and daughter Ana and expressing little attention towards his wife. After being stabbed by his daughter Ana, Sergei recovers, stating that Sasha restored him with corrupted blood which he calls "unlife". They pull off the mask of the corpse of Spider-Man hung in their mantel and discover that
Kaine had impersonated Peter in Spider-Man's costume. Kaine's nature as a clone indicates his unnatural existence has muddied the properties of the ritual. Spider-Man, in his black costume, confronts Kraven and the rest of the Kravinoff Family. Spider-Man is tempted to kill Kraven, who eagerly and desperately attempts to goad him into it. Beating him brutally, Spider-Man takes Kraven's spear in hand and prepares to grant his enemy his wish but he refuses to do so when he is reminded by
Julia Carpenter (who has inherited the powers of
Madame Web after her death) that committing murder is not in his moral code, and furthermore, by going through with it, damns himself to a future where from that point he takes on a more brutal approach to crime-fighting, including killing suspects, which will lead him to die in a standoff against the police (a scenario previously glimpsed in an earlier issue). Following their defeat by Spider-Man, Kraven and his family escape to the Savage Land. While there, Kraven brutally kills Sasha (who complained that Kraven would have to hunt them to prove their place in the Kravinoff family) and euthanizes Vladimir. Alyosha flees in disgust of what his dad did to his stepmom and half-brother afterwards. Kraven and Ana discuss rebuilding the Kravinoff family, which leads to Ana running off to hunt Alyosha to prove herself worthy to Kraven and rebuild the Kravinoff family. It was later revealed that back in the 1950s, Kraven the Hunter was a member of
Nick Fury's
Avengers alongside
Dominic Fortune,
Dum Dum Dugan,
Namora,
Silver Sable,
Sabretooth, and
Ulysses Bloodstone, tracking a stolen version of the Super-Soldier Serum combined with the Infinity Formula that had been stolen by a group of Nazis attempting to create their own Captain America. Kraven is contacted by a doctor who once treated him when a past hunt went wrong, the doctor requesting that Kraven track down a recent patient of hers—who had been used as a test subject to duplicate another man's electrical abilities—as well as asking that he capture the
Black Panther—currently acting as a 'local' vigilante to regain his sense of self after the destruction of
Wakanda's
vibranium—in return for her help finding a way for him to die. With the aid of
Storm, T'Challa is able to stay ahead of Kraven long enough to convince him that the doctor had lied about being able to kill him, Kraven agreeing to leave T'Challa alone and take the doctor's mutated animal subjects back with him into the wild. Kaine, in the alias of the
Scarlet Spider, later encountered Kraven the Hunter, who was dressed as the Scarlet Spider to torment him. With the help of Ana, Kraven kidnapped Kaine's friends to motivate the Scarlet Spider to fight him. In the end, Kaine delivered Kraven a fatal blow in the chest, which paralyzed his heart. But using the same attack, Kaine brought him back to life supposedly still breaking the curse. Following the fight, both Kravens disappeared.
The Unbeatable Squirrel Girl Kraven, still claiming to be cursed, next battles
Squirrel Girl at
Empire State University, having earned her ire by lashing out at the local squirrels, including
Tippy-Toe. Kraven departs when Squirrel Girl informs him of the existence of sea monsters like
Giganto, playing on Kraven's obsessions by challenging him to hunt worthier prey. He later returns to abduct
Howard the Duck, but is trapped with Howard and Squirrel Girl in a manhunt as the hunted. After surviving, he vows to only "hunt the hunters". During the "
Secret Empire" storyline, Kraven is recruited by Baron
Helmut Zemo to join the Army of Evil. When Manhattan is surrounded by a
Darkforce dome, Kraven raids the
Daily Bugle to find information to the identity of Spider-Man. Knowing that J. Jonah Jameson would be in danger, Phil Sheldon's daughter Jennie headed to J. Jonah Jameson's house to warn him. After Kraven attacked J. Jonah Jameson, Jennie Sheldon fired a signal flare into the sky. This attracted the attention of
Spider-Woman, who defeated Kraven. Jennie Sheldon even took pictures of the fight. Squirrel Girl has helped Kraven reform, teaming up with him to fight other villains, even establishing a friendship with him. She helps Kraven realize that Spider-Man is not even close to being the most dangerous prey in the Marvel Universe.
Hunted In the "
Hunted" storyline, Kraven the Hunter has 87
clones of him created, trained as the Sons of Kraven, and sent out to prove themselves by being hunted by each other. The surviving clone is labeled as the
Last Son of Kraven. With help from
Taskmaster,
Black Ant, and
Arcade, Kraven captures various animal-themed villains, traps them in
Central Park, and has a group of Hunter-Bots hunt them down for sport. It is revealed that Kraven's secret motive is to force Spider-Man into killing him again so that he can be free from his curse of immortality. Kraven releases all the surviving hunting targets and dons a copy of Spider-Man's black costume. Mistaking Kraven for Spider-Man, the Last Son of Kraven strangles him to death, freeing him of his curse. ==Powers and abilities==