Killraven (Jonathan Raven) is a fictional character appearing in American comic books published by Marvel Comics. Created by co-plotters Roy Thomas and Neal Adams, scriptwriter Gerry Conway, the Martians from H. G. Wells' "The War of the Worlds" return in 2001 for another attempt at conquering the planet (later retconned as extrasolar aliens using Mars as a staging area). After humanity's enslavement, men not used as breeders or collaborators are trained and forced to battle gladiator-style for the Martians' amusement; women are used as breeders to supply infants, which are eaten by the Martians as a delicacy. Jonathan Raven, dubbed Killraven as his gladiatorial nom de guerre, escapes with the help of the gladiatorial "keeper", but without his brother, Deathraven. Killraven joins the Freemen, a group of freedom fighters against Martian oppression.