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 Marvel (Marvel Comics) End", the superheroine formerly known as Kismet (now under the name of Ayesha) has apparently taken over the Captain Marvel mantle in the not-too-distant future. In the alternate, mutant-dominated world created by Scarlet Witch, Carol Danvers (Ms. Marvel in mainstream continuity) uses the name Captain Marvel and is one of the few non-mutant heroes with a successful career. In the mini-series "Marvel Zombies" Captain Marvel is seen sitting with Vulture and Hercules (both infected) waiting for Iron Man. He is later killed by the Silver Surfer for immediate cause. In "The Thanos Imperative", the main villain is an alternate version