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Mark has a cat named Cairo.
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As part of the ensemble cast of Boston Legal Mark has been nominated 3 times, in 2006 – 2008, for a Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series.
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In 2003 Mark was nominated for a Teen Choice Award for Choice TV Breakout Star – Male for Keed Eddie.
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Mark's parents are Michael and Martha Valley. He has three younger sisters: Jennifer, Lynn, and Marnie.
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Mark attended the Etage School of the Arts in Berlin, Germany. He also studied at HB Studio in New York, New York.
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In 2001, Mark wrote about his days as a military man in the one-man show Walls, Wars and Whiskey.
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Mark appeared in the HBO TV movie
Breast Men in 1997 and TNT's
Running Mates in 2000. His other film credits include "
Some Girl" (1998), "
Jericho" (2001), "Big Time" (2001), "Live!" (2007) and "Shrek the Third" (2007).
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Mark appeared in TV commercials for Lexus automobiles in 1999 and Black Angus Steakhouse in 2001.
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Mark's theatrical credits include The Crucible and Hurly Burly.
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Mark loves working with animals.
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Mark became interested in acting while he was in high school.
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Many people say Mark resembles professional wrestler
John Cena.
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Mark has a daughter, Sherri, from a previous relationship.
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Mark is 5' 11" (1.80 m) tall. He has blonde hair and blue eyes.
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Mark enjoys outdoor activities such as hiking, mountain biking, and climbing.