Hector Elizondo was 25 in The Fat Black Pussycat when he played an uncredited character.
That was over 61 years ago in 1963.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 87, and has starred in 83 movies in total, 81 of those since The Fat Black Pussycat was released.
In The Fat Black Pussycat, I think Hector Elizondo looks: