Art Malik was 27 in Richard's Things when he played the character 'Dr. Mustag'.
That was over 42 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 70, and has starred in 38 movies in total, 37 of those since Richard's Things was released.
In Richard's Things, I think Art Malik looks: