Batman: Mask of the Phantasm is the first movie in Bruce Timm, Eric Radomski, and Paul Dini's DC Animated Universe, serving as a prequel to Batman: The Animated Series. It pits the Dark Knight against a mysterious vigilante known as the Phantasm, who forces Bruce Wayne to confront his crime-fighting crusade and his traumatic past. Iconic DC voice actors Kevin Conroy and Mark Hamill return as Batman and Joker, respectively.