James Stewart.
The oldest man to win a Best Actor Oscar was Henry Fonda for On Golden Pond in 1982.
It is impossible for an actress to win best actor.
Sidney Poitier.
Gary Coleman is best known as a child actor in "Diff'rent Strokes."
No it was nominated for Best Supporting Actor and for Best Score, but didn't win.
No he didn't. He was nominated for Best Actor, but did not win it.
Yes. He won Best Actor for Tender Mercies (1983).
No. He was never nominated for an Academy Award.
Sidney Poitier
yes it did.(i'm not sure his name but it was the actor of Hector)
Denzel Washington was the second African American to win Best Actor. He won for his role in Training Day (2001). He had previously been nominated in the Best Actor category for The Hurricane in 1999 and Malcolm X in 1992.