Tom Cruise is a punk compared to this guy. Introduced in Amazing Adventures (Vol. 2) #18 by Roy Thomas, Neal Adams, Gerry Conway and Howard Chaykin, Jonathon Raven was born a year before Earth was attacked and conquered by Martians. When he was six, his mother was killed and his brother, Joshua, was forced to work for the Martians as an Exterminator. Jonathon was forced to train and compete in gladiatorial combat, earning the nickname, Killraven. He tried to escape but was sent to a rehabilitation center where he was experimented on by Keeper Whitman. Whitman hated the Martians and gave Killraven the abilities to fight back. Killraven was sent back to the arena without his memories of the center. After defeating the ultimate gladiator with his friend Old Skull, he led a rebellion against the Martians, freeing New York from their control and the alien’s collaborators. Leading the rebels across America, he journeyed to Florida where he was reunited with his brother, who the Martians had turned into Deathraven. Killraven battled him but had no choice but to kill his brother.

After a time-crossed adventure with Spider-man (Prime Universe), he was approached by Earth-X X-51’s Heralds team. He and Deathlok of Earth-7484 were sent to Earth-1124, which was ruled over by Sat-Yr9. She took interest in Killraven and he gave into her seductions remaining on her world. He would return to the Heralds when they battled rogue Watchers. While remaining with the Heralds, he would encounter the GOTG 3000, who were sent back in time by Mephisto. He then discovered that they are from the same time, which gave him hope for the future of his universe. Using this as motivation, he returned to his home reality to battle the Martians. When Kang broke the timeline, Killraven was brought to the Prime universe, where he aided the Avengers against Kang. He was later found by Winter Soldier in a mental asylum in London.