Martin Cummins was 18 in Friday the 13th Part VIII: Jason Takes Manhattan when he played the character 'Wayne Webber'.
That was over 35 years ago in 1989.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 54, and has starred in 34 movies in total, 33 of those since Friday the 13th Part VIII: Jason Takes Manhattan was released.
In Friday the 13th Part VIII: Jason Takes Manhattan, I think Martin Cummins looks: