Captain Marvel (DC Comics) Comics" #21 (1941) introduced the Lieutenant Marvels: three other boys named "Billy Batson" who could also become adult superheroes. Captain Marvel, Jr., the alter-ego of disabled newsboy Freddy Freeman, debuted in "Whiz Comics" #25 (1941). Mary Marvel, alter-ego of Billy's twin sister Mary Batson, first appeared in "Captain Marvel Adventures" #18 (1942). In contrast to Captain Marvel and the Lieutenants, both Mary Marvel and Captain Marvel, Jr. remained kids in superhero form, and were given their own eponymous books in addition to appearing as the lead features in "Master Comics" and "Wow Comics", respectively. Captain Marvel, Captain Marvel Jr., and
G.I. Joe: A Real American Hero (Marvel Comics) G.I. Joe: A Real American Hero (Marvel Comics) G.I. Joe: A Real American Hero is a comic book that was published by Marvel Comics from 1982 to 1994. Based on Hasbro, Inc.'s "" line of military-themed toys, the series has been credited for making "G.I. Joe" into a pop-culture phenomenon. "G.I. Joe" was also the first comic book to be advertised on television, in what has been called a "historically crucial moment in media convergence." The series was written for most of its 155-issue run by comic book writer, artist, and editor Larry Hama, and was notable for its realistic,