That was over 31 years ago in 1990.
Today he is 69, and has starred in 74 movies in total, 64 since Dances with Wolves was released.
In Dances with Wolves, I think Graham Greene looks:
Dances with Wolves scores 7.6 out of 10 on The Movie Database.
Graham Greene's first acting role was as 'Roar' in Tiger of Northland, released in 1976 when he was 24.