Brad Bird was 20 in Doctor of Doom when he played the character 'Don Carlo's Voice/Bystander's Voice'.
That was over 45 years ago in 1979.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 66, and has starred in 17 movies in total, 16 of those since Doctor of Doom was released.
In Doctor of Doom, I think Brad Bird looks: