Jack Nicholson was 37 in One Flew Over the Cuckoo's Nest when he played the character 'Randle Patrick McMurphy'.
That was over 49 years ago in 1975.
Today he is 87, and has starred in 97 movies in total, 67 of those since One Flew Over the Cuckoo's Nest was released.
In One Flew Over the Cuckoo's Nest, I think Jack Nicholson looks: