Sam Elliott was 23 in Butch Cassidy and the Sundance Kid when he played the character 'Card Player #2'.
That was over 55 years ago in 1969.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 79, and has starred in 77 movies in total, 76 of those since Butch Cassidy and the Sundance Kid was released.
In Butch Cassidy and the Sundance Kid, I think Sam Elliott looks: