From a story on reuters.com headlined “Michael Gambon, British actor who played Dumbledore, dies aged 82”:

British-Irish actor Michael Gambon, best known to global audiences for playing the wise professor Albus Dumbledore in the “Harry Potter” movie franchise and whose career was launched by his mentor Laurence Olivier, died on Thursday.

Gambon began his acting on the stage in the early 1960s and later moved into TV and film. Notable film roles include a psychotic mob leader in Peter Greenaway’s “The Cook, the Thief, His Wife & Her Lover” in 1989 and the elderly King George V in Tom Hooper’s “The King’s Speech” in 2010.