Pete Docter was 19 in Palm Springs when he played the character 'Sigmond Dinosaur'.
That was over 35 years ago in 1989.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 55, and has starred in 21 movies in total, 20 of those since Palm Springs was released.
In Palm Springs, I think Pete Docter looks: