Scott Thompson was 20 in Cheech & Chong's Next Movie when he played an uncredited character.
That was over 44 years ago in 1980.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 64, and has starred in 43 movies in total, 42 of those since Cheech & Chong's Next Movie was released.
In Cheech & Chong's Next Movie, I think Scott Thompson looks: