Billy Zane was 18 in Back to the Future when he played the character 'Match'.
That was over 38 years ago in 1985.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 57, and has starred in 133 movies in total, 129 of those since Back to the Future was released.
In Back to the Future, I think Billy Zane looks: