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.
Captain Marvel (DC Comics) abilities. Based on book sales, the character was the most popular superhero of the 1940s, outselling even Superman. Fawcett expanded the franchise to include other "Marvels", primarily Marvel Family associates Mary Marvel and Captain Marvel Jr., who can harness Billy's powers as well. Captain Marvel was also the first comic book superhero to be adapted into film, in a 1941 Republic Pictures serial titled "Adventures of Captain Marvel". Fawcett ceased publishing Captain Marvel-related comics in 1953, partly because of a copyright infringement suit from DC Comics, alleging that Captain Marvel was a copy of Superman. In 1972, DC licensed the