Randy Quaid was 20 in The Last Picture Show when he played the character 'Lester Marlow'.
That was over 52 years ago in 1971.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 73, and has starred in 99 movies in total, 99 of those since The Last Picture Show was released.
In The Last Picture Show, I think Randy Quaid looks: