Billy Batson is one of the playable in-game characters in LEGO Dimensions 2: The Rise of Enoch, from the DC Comics franchise.
Background
When he was fifteen years old, Billy Batson was chosen by a wizard who told him that it was his destiny to become the superhero Shazam!. Every time Billy says "Shazam!", he turns into an adult with the powers of the Greek gods.
Shazam! works with the Justice League at times, which mainly consists of Martian Manhunter, Superman, Batman, Wonder Woman, Green Lantern, Cyborg, Aquaman, and The Flash.