Don't know if the actor John Cazale has been mentioned. Starred in some classic films of the 70s first two Godfathers, The Conversation, Dog Day Afternoon and I believe died before the release of his last film The Deer Hunter.
That's a very good call. He left quite a legacy.
I've always felt that some of those films and the performances of their stars are somewhat over-rated, John Cazale himself was the best thing about them.