Markell V. Efimoff (born August 22, 1988), known professionally as Mark L. Young, is an American actor.
Early life Markell V. Efimoff () was born in Everett, Washington, of Russian descent. He has a fraternal twin, Arthur, and an older sister, Arlaris.
Young began acting at the age of nine and moved to Los Angeles when he was 12 to pursue his career. His first significant on-screen credit was a small role in two episodes of the HBO series Six Feet Under.
Career Young's notable appearances include television shows The Comeback, The O.C., Dexter, Big Love, Childrens Hospital, Heroes, Secret Life of the American Teenager, Cold Case, ER, CSI: Crime Scene Investigation and The Inbetweeners, while his film credits include Sex Drive, Happiness Runs, The Lucky Ones, We're the Millers and Tammy.
Filmography Film Year Film Role Note2003RoguesChoir2004Harry + MaxTeen Harry2005In Memory of My FatherMiddle ChrisDeleted scenes2008Sex DriveRandyThe Lucky OnesScott Cheaver2010Happiness RunsVictor2013Movie 43Calvin CutlerBeneathGrubbsWe're the MillersScottie P2014TammyJesseThe Guilty InnocentJosh2015The Curse of Downers GroveIanDaddy's Home Dental Hygienist2017Swing StateNeil HornbackDirty LiesJosh2018False ProfitsTravis Pitts2019Bad ArtBenji
Television Year Film Role Note2003Still Standing Kid #1Episode: "Still Partying"2003–2004Six Feet Under Eric Sheedy 2 episodes2005CSI: Miami Lucas HallEpisode: "Nailed"The O.C.Prepubescent Geek #1Episode: "The Ex-Factor"2006DexterJeremy Downs2 episodesCold CaseYoung Jed HuxleyEpisode: "The Key"2007CSI: Crime Scene InvestigationTommy HalpertEpisode: "Lying Down with Dogs"EREvan HayesEpisode: "Crisis of Conscience"2009Big LoveFranky Harlow4 episodesThe Secret Life of the American TeenagerThomas2 episodesHeroesJeremy Greer2 episodes2010CSI: NYTom Reynolds Episode: "Hide Sight"Childrens HospitalRaye LePlanteEpisode: "Joke Overload"Criminal MindsOwen PorterEpisode: "Exit Wounds"2012The InbetweenersNeil SutherlandMain cast; 12 episodes2013WorkaholicsSimonEpisode: "Fourth and Inches"Kroll ShowMark's SonEpisode: "Can I Finish?"The NeighborsLoganEpisode: "Good Debbie Hunting"2013–2014BetasTrevor5 episodes2014Mind GamesRyan McKeeEpisode: "Apophenia"The ComebackTyler Beck8 episodes2015Life in PiecesScarecrowEpisode: "Godparent Turkey Corn Farts"2016AquariusBobby Beausolein2 episodesCode BlackJustin KellerEpisode: "Hero Complex"2017Ten Days in the ValleyPJ6 episodes2019Veronica MarsJimmyEpisode: "Spring Break Forever"2020Filthy RichJason ConleyMain cast; 10 episodes
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