Mark Harmon

Biography

Thomas Mark Harmon (born September 2, 1951) is an American actor, producer and director. He is known for playing the lead role of Leroy Jethro Gibbs on NCIS (2003-2021), a role which has earned him six nominations at the People's Choice Awards including a win for Favorite TV Crime Drama Actor in 2017. Since 2008, he has also been a producer and executive producer of the show as well as its' spinoff series NCIS: New Orleans. His character of NCIS special agent Leroy Jethro Gibbs was introduced in a guest starring role in two episodes of JAG, and continued on the spinoff show NCIS. He had a recurring role as Secret Service special agent Simon Donovan in a four-episode story arc in The West Wing in 2002, for which he received an Emmy Award nomination. One of his first national TV appearances (other than as an athlete) was in a commercial for Kellogg's Product 19 cereal with his...

Known For

Career Timeline

19741981198819952002200920162025
  1. 2025
    Freakier Friday

    Ryan • Acting

  2. 2024
  3. 2019
    The Wild

    Self • Acting

  4. 2011
    Certain Prey

    Lucas Davenport • Acting

  5. 2010
    Justice League: Crisis on Two Earths

    Superman (voice) • Acting

  6. 2009
    Weather Girl

    Dale • Acting

  7. 2004
    Chasing Liberty

    James Foster • Acting

  8. 2003
    Freaky Friday

    Ryan • Acting

Mark Harmon - Aperture