Bam Margera was 12 in Fairmans 1 when he played the character 'Himself'.
That was over 30 years ago in 1993.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 43, and has starred in 82 movies in total, 77 of those since Fairmans 1 was released.
In Fairmans 1, I think Bam Margera looks: