DC Comicsâ latest superhero spectacle, âShazam!â follows the comedic adventures of Billy Batson (Asher Angel), a teenage boy who transforms into an adult superhero called Shazam (Zachary Levi). A buff, lightning-bolt-emblazoned man-boy, Shazam isnât as well-known now as he used to be. But he is one of the most important heroes in comic history.