<P> Barr was active in the Allen High School theater program, and had major roles in many school plays and musical theater productions . This included the role of Tommy in Meredith Willson's The Music Man, and a court jester in the school's madrigal dinner . While a high school senior, Barr learned that Richard Linklater was planning a film about football in Austin, Friday Night Lights . He auditioned for a role . Although this movie ended up being put on hold for another two years and Linklater was replaced by Peter Berg as director, Barr made some favorable impressions . Producer Ann Walker Mclay, Linklater, and collaborator and director Clark Lee Walker offered him the lead role in their film Levelland that was being shot in Austin in the late spring and early summer of 2002 . </P> <P> Half a year after the filming of Levelland ended, in January 2003, Barr moved to Los Angeles, where his first acting job was a scene on the television show ER . </P> <P> Some of Barr's roles include playing Ian Banks, Peyton Sawyer's (played by Hilarie Burton) stalker on One Tree Hill . Barr has also portrayed guest and recurring roles on popular television series ER, Bones, The O.C. and Commander in Chief . He starred as David Stanley in the direct to DVD film Protecting the King as Elvis Presley's youngest step - brother . </P> <P> Barr appeared in the 2008 film The House Bunny as Tyler, one of the university's students . </P>

Who plays peyton's stalker on one tree hill
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