Mark Harmon

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American actor

Why Is Mark Harmon Influential?

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According to Wikipedia, Thomas Mark Harmon is an American actor. He is known for playing the lead role of Leroy Jethro Gibbs in NCIS. He also appeared in a wide variety of roles since the early 1970s. After spending the majority of the 1990s as a character actor, he played Secret Service special agent Simon Donovan in a four-episode story arc in The West Wing in 2002, receiving an Emmy Award nomination for the role.

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What Schools Are Affiliated With Mark Harmon?

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