<P> Olsen co-starred as Sully in the Fox sitcom The Loop . Olsen had four other projects in 2008 and continues to reside in Malibu, California . </P> <P> Olsen appeared on Will Ferrell and Adam McKay's streaming video website Funny or Die, with a small series of segments featuring a character called Perry Hilton, a parody of Paris Hilton . He starred in the 2011 science - fiction horror film The Thing . </P> <P> Olsen portrays Detective Marty Deeks on the CBS show NCIS: Los Angeles . His character appeared in two episodes of season one before joining the cast as a series regular in the second season . </P> <P> Olsen became engaged to actress Sarah Wright in October 2011 . They were married near Jackson Hole, Wyoming, on June 23, 2012 . Their first child, a son, was born in 2013 and their second child a daughter was born in 2016 . Olsen and Wright were featured in a 2015 episode of the HGTV series House Hunters buying a vacation home near Jackson Hole . Olsen works with the charity Hats Off for Cancer as an Honorary Board Member and Spokesperson, featured on their Public Service Announcement video . </P>

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