A few option to get you started.

Biff: The 16 year old quarter back of the school. With large myscles that stretch every shirt he wears, rugged good looks that leave the girls swooning, and the attitude of your typical bully.

Max: A twenty year old up and coming body builder with a bright future ahead.

Bruce: The 35 year old muscle of tge local mob.

Bill: 40 year old gentle giant.