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
Captain America (Ultimate Marvel character) that there is no reason to fight each other, Maker killed the Earth-1610 Captain America for disobeying his orders. Captain America later turns up alive with the Ultimates when it is shown that Earth-1610 has been recreated. During the "Secret Wars" storyline, a variation of the Ultimate Captain America resides in the Battleworld domain called the Kingdom of Manhattan where he also co-exists with a variation of his Earth-616 counterpart. Captain America (Ultimate Marvel character) Captain America (Steve Rogers) is a fictional comic book superhero appearing in books published by Marvel Comics. He is an alternative version of Captain America