not the least of which is the disintegration of family relations between the show's three stars, Paul Teutul Sr., Paul Jr. and Mikey, leading to two rival custom motorcycle shops. Drama.

Season four premiered in 2006. The cast members include Paul Teutul Sr., Paul Teutul Jr., Michael Teutul, Rick Petko, and Jason Pohl, to name a few. Watch American Chopper Season 4 streaming via ...