This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful.Find sources: "Mark L. Young" – news · newspapers · books · scholar · JSTOR (August 2018) (Learn how and when to remove this template message)
Mark L. Young
Markell V. Efimoff

(1991-01-01) January 1, 1991 (age 30)
Years active2003–present

Mark L. Young (born Markell V. Efimoff[1] January 1, 1991) is an American actor.[2] He attended La Salle University in the United States.[citation needed]

Early life

Markell V. Efimoff born in Everett, Washington, of Russian descent.

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.[3]


Young's other notable appearances include television shows The Comeback, The OC, 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.[4]



Year Film Role Note
2003 Rogues Choir
2004 Harry + Max Harry, Aged 15
2005 In Memory of My Father Middle Chris Deleted scenes
2008 Sex Drive Randy
2008 The Lucky Ones Scott Cheaver
2010 Happiness Runs Victor[5]
2013 Movie 43 Calvin Cutler; Segment "The Thread"
2013 Beneath Grubbs
2013 We're the Millers Scottie P
2014 Tammy Jesse
2014 The Guilty Innocent Josh
2015 The Curse of Downers Grove Ian
2015 Daddy's Home Dental hygienist
2017 Swing State Neil Hornback
2017 Dirty Lies Josh
2018 False Profits Travis Pitts Made for TV movie
2019 Bad Art Benji Post-production


Year Film Role Note
2003 Still Standing Kid #1 1 episode: "Still Partying"
2003–2004 Six Feet Under Eric Sheedy 2 episodes: "Tears, Bones & Desire", "In Case of Rapture"
2005 CSI: Miami Lucas Hall 1 episode: "Nailed"
2005 The O.C. Prepubescent Geek #1 1 episode: "The Asshole"
2006 Dexter Jeremy Downs 2 episodes: "Popping Cherry", "Circle of Friends"
2006 Cold Case Young Jed Huxley 1 episode: "The Key"
2007 CSI: Crime Scene Investigation Tommy Halpert 1 episode: "Lying Down with Dogs"
2007 ER Evan Hayes 1 episode: "Crisis of Conscience"
2009 Big Love Franky 4 episodes
2009 The Secret Life of the American Teenager Thomas 2 episodes: "Making Up Is Hard to Do", "Money for Nothing, Chicks for Free"
2009 Heroes Jeremy Greer 2 episodes: "Tabula Rasa", "Strange Attractors"
2010 CSI: NY Tom Reynolds 1 episode: "Hide Sight"
2010 Childrens Hospital Raye LePlante 1 episode: "Joke Overload"
2010 Criminal Minds Owen Porter 1 episode: "Exit Wounds"
2012 The Inbetweeners Neil Sutherland Main cast
12 episodes
2013 Workaholics Simon 1 episode: "Fourth and Inches"
2013 Kroll Show Mark's Son 1 episode: "Can I Finish?"
2013 The Neighbors Logan 1 episode: "Good Debbie Hunting"
2013-2014 Betas Trevor Recurring cast
5 episodes
2014 Mind Games Ryan McKee 1 episode: "Apophenia"
2014 The Comeback Tyler Beck Main cast (season 2)
8 episodes
2015 Life in Pieces Scarecrow 1 episode: "Godparent Turkey Corn Farts"
2016 Aquarius Bobby Beausolein 2 episodes: "Mother Nature's Son", "Blackbird"
2016 Code Black Justin Keller 1 episode: "Hero Complex"
2017 Ten Days in the Valley PJ 6 episodes
2019 Veronica Mars Jimmy 1 episode: "Spring Break Forever"
2020 Filthy Rich Jason Conley Main cast


  1. ^ Mark L. Young IMDb. Retrieved July 22, 2013
  2. ^ Retrieved July 22, 2013
  3. ^ "Mark L. Young: The Inbetweeners". Retrieved Jan 17, 2013.
  4. ^ We're the Millers Official Site. Warner Brothers 2013. Retrieved July 22, 2013.
  5. ^ Happiness Runs - Film Review - The Hollywood Reporter