 Stiller has been described as the "acknowledged leader" of the Frat Pack, a core group of actors who have worked together in multiple films.The group includes Jack Black, Will Ferrell, Vince Vaughn, Owen Wilson, Luke Wilson, and Steve Carell.Stiller has been acknowledged as the leader of the group because of his multiple cameos and for his consistent use of the other members in roles in films which he produces and directs.