James Brolin was 22 in Take Her, She's Mine when he played the character 'Mel; Mollie's Student Friend at Airport (uncredited)'.
That was over 60 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 83, and has starred in 106 movies in total, 105 of those since Take Her, She's Mine was released.
In Take Her, She's Mine, I think James Brolin looks: