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
Transformers Universe (comic book) Transformers Universe (comic book) Transformers Universe is the title of several comic book series based on the Transformers series by Hasbro. The first comic book was printed in 1986 by Marvel Comics as a character guide, while later series printed by 3H Enterprises contained fiction for the toy line. Transformers Universe refers to the four-issue limited series published by Marvel Comics in 1986 to showcase profiles of the most popular characters in the Transformers comic and cartoon series as well as "". The series was requested by fans who were already familiar with Marvel's 12+ issues of "Marvel Universe", which