<P> He played a preteen murderer - rapist in an episode of Law & Order: Special Victims Unit . He made his motion picture debut in Clint Eastwood's Oscar - nominated Mystic River, playing Young Sean . In 2004, Paolo was on One Life to Live as Travis O'Connell, a recurring character . Paolo also made a return appearance on Law & Order: Special Victims Unit, playing a disturbed teenager based on the real case of Justin Berry . Other films include World Trade Center for Oliver Stone in 2006; Snow Angels, directed by David Gordon Green; and Favorite Son, his first leading role . </P> <P> Paolo has a background in theatre and commercials . He has appeared on the Broadway stage in the hit musical The Full Monty and off - Broadway in the New York public theater production of Shakespeare's Richard III . He played Bottom in an abridged production of Shakespeare's Midsummer Night's Dream . </P> <P> From 2007 to 2011, Paolo had a supporting role on The CW's series Gossip Girl, where he played Eric van der Woodsen, the brother of lead Serena van der Woodsen's character . His last appearance was in the sixth season . </P> <P> In 2010, he starred in the vampire apocalypse film Stake Land directed by Jim Mickle . </P>

Who plays serena's little brother in gossip girl
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