The Batman also received a spin-off comic book series – "The Batman Strikes!" – published by DC Comics. The spin-off comic books were set in the same continuity and style as "The Batman". The man known as Batman, the costumed protector of Gotham City, is secretly billionaire playboy, Bruce Wayne (voiced by Rino Romano). Batman began three years prior to the start of the series, and the Gotham City police do not publicly acknowledge the vigilante's existence. Operating out of a secret lair underneath Bruce Wayne's mansion — known as the Bat cave — Batman and his butler, Alfred Pennyworth (voiced by
Batman: The Animated Series actively involved in the management of Wayne Enterprises, without jeopardizing his secret identity. For example: in the episode "Eternal Youth", Bruce is shown angrily ordering one of his directors to cancel a deal with a timber company in the Amazon rainforest that had been made behind his back, threatening him with termination upon failure to comply. Kevin Conroy used different voices to distinguish between his portrayal of Bruce Wayne and Batman, a tactic used previously by Michael Keaton in Tim Burton's live-action films. Conroy based his dual-voice performance on the 1934 film adaptation of "The Scarlet Pimpernel". The series also