Many of his roles have been comic (eg. The Birdcage, Mrs. Doubtfire[?]). He has also starred in serious movies (Awakenings , What Dreams May Come[?]) and in 1998 he won an Oscar as Best Supporting Actor for his role in Good Will Hunting.
Robin Williams and his wife Marsha Garces Williams founded the Windfall Foundation, a philanthropic organization to raise money for many different charities. Robin Williams devotes much of his energy doing work for charities, including the Comic Relief fund-raising efforts.
Williams is reported to have bipolar disorder.