Blood Brothers (comics) Blood Brothers (comics) The Blood Brothers are fictional characters appearing in American comic books published by Marvel Comics. The Blood Brothers first appeared in "Iron Man" #55 (Feb. 1973) and were created by Jim Starlin. Following their debut, the Blood Brothers returned in a Starlin/Friedrich story in "Marvel Feature" #12 (Nov. 1973), again fighting the superhero Iron Man, here teamed with Fantastic Four member The Thing. The Blood Brothers continued as Iron Man antagonists in "Iron Man" #88-89 (Aug.-Oct. 1976), then disappeared from publication for several years before resurfacing to battle the titular superhero team in "The Avengers" #252-253 (Feb.
Marvel Comics brand were the science-fiction anthology "Journey into Mystery" #69 and the teen-humor title "Patsy Walker" #95 (both cover dated June 1961), which each displayed an "MC" box on its cover. Then, in the wake of DC Comics' success in reviving superheroes in the late 1950s and early 1960s, particularly with the Flash, Green Lantern, and other members of the team the Justice League of America, Marvel followed suit. In 1961, writer-editor Stan Lee revolutionized superhero comics by introducing superheroes designed to appeal to older readers than the predominantly child audiences of the medium. Modern Marvel's first superhero team, the titular