Vince Vaughn and in 2001, appeared in "Made", another film penned by Favreau. Vaughn also appeared in Dwight Yoakam's directorial debut movie "South of Heaven, West of Hell". Vaughn's role in the successful 2003 comedy "Old School" skyrocketed his popularity. In 2004, Vaughn appeared alongside Ben Stiller in the hit films "Starsky & Hutch" and "". After this series of roles, Vaughn was dubbed one of the Hollywood "Frat Pack", a group of actors who frequently co-star in film comedies. He subsequently appeared in 2005's "Thumbsucker", "Be Cool", and "Mr. & Mrs. Smith". Also in 2005, Vaughn starred alongside Owen Wilson in
Starsky & Hutch during the fourth and final season. This time, Starsky's wayward younger brother Nick (John Herzfeld) was introduced, in the episode "Starsky's Brother". It was intended that if Glaser was to quit, that the reformed Nick would take David's place on the police force (and allow the series to avoid a title change). However, the disgruntled Glaser decided to return yet again, to finish out the season. Although a fifth season was planned, increasing production costs, Glaser's persistent (and oft-publicized) desire to move on, and declining ratings, brought an end to the series. The final episode, "Sweet Revenge" (which has Starsky