Name at birth: Michael Keaton Douglas

Keaton is known as a comic actor who can also go the serious route. His debut role in the manic morgue comedy Night Shift (1982, with Shelley Long) was typical of his offbeat style. He really became a star as the frenetic title ghoul in Tim Burton's dark comedy Beetlejuice (1988). The next year he played Batman in Burton's big-budget movie Batman; it was considered casting against type, but Keaton worked well enough to help the film become a lucrative Hollywood series. He played the Caped Crusader in the 1992 sequel, Batman Returns, before giving way to Val Kilmer (Batman Forever, 1995) and George Clooney (Batman and Robin, 1997). He had more serious roles in dramas like Clean and Sober (1988), Pacific Heights (1990, with Keaton as the nightmare tenant of homeowner Melanie Griffith), and the haunting horror flick White Noise (2005).