Eric Christian Olsen is an American actor known for portraying Marty Deeks on NCIS: Los Angeles and Austin in Not Another Teen Movie.

He voices Rock the warnicorn and Glitter Whale in Star vs. the Forces of Evil, in "Spider With a Top Hat" and "Holiday Spellcial".

Early life

Olsen was born in Eugene, Oregon, the son of Jeanne (née Donstad), a non-denominational chaplain, and Paul V. Olsen, a professor of English and head track and cross country coach of Augustana College Rock Island, Illinois. He has an older brother who acts as his stunt double. Olsen spent most of his childhood in Bettendorf, Iowa and attended Bettendorf Middle and High School, where he pursued interests such as sports, Japanese, and Chinese. In addition to many local theatre performances, Olsen trained in improv with ComedySportz Quad Cities and later joined the cast.


Olsen's first starring role was the titular role in the 1999 TV movie Arthur's Quest. Soon after, he gave an Emmy-submitted portrayal of a dying burn victim on NBC's ER. Olsen's next role was in HBO's Black Cat Run. He soon landed a starring role in the Fox TV series Get Real as Cameron Green. He later played Ben Affleck's gunner in Pearl Harbor, and this was quickly followed by a leading role as Austin "the Cocky Blond Guy" in the feature film Not Another Teen Movie.

Olsen then played Jake in the teen comedy The Hot Chick. In 2003, he won the role of Lloyd Christmas in Dumb and Dumberer: When Harry Met Lloyd. He has also played opposite Chris Evans in Cellular and joined the final season of Fox's Tru Calling. Olsen co-starred as Sully in the Fox sitcom The Loop, and he starred in the 2011 science-fiction horror film The Thing.

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 season two.

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