Killraven
First appeared in Amazing Adventures Vol. 2 #18 in 1973 and was created by Roy Thomas, Neal Adams, Gerry Conway, and Howard Chaykin. Jonathan Raven was born on an alternate Earth one year before the Martian invasion. He was captured by the Martians and forced to fight for their entertainment as a gladiator, eventually earning the name "Killraven." Eventually, he escaped and founded the Freemen.read more