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  • Mark Harmon, Jamie Lee Curtis
  • Mark Harmon, of the television show ‘NCIS,’ speaks during the CBS portion of the 2012 Television Critics Association Press Tour at The Langham Huntington Hotel and Spa, Pasadena, on January 11, 2012
  • Brian Dietzen, David McCallum, Pauley Perrette, Mark Harmon, Sean Murray, Cote de Pablo and Michael Weatherly celebrate the 200th episode of ‘NCIS,’ Valencia, Calif., January 3, 2011
  • “NCIS” star Mark Harmon arrives at “The Late Show With David Letterman” at the Ed Sullivan Theater, NYC, on May 10, 2011
  • Mark Harmon as Jethro Gibbs on “NCIS,” CBS, 2010
  • Michael Weatherly as Tony and Mark Harmon as Gibbs on ‘NCIS’
  • Mark Harmon looks very classic for the event
  • Mark Harmon and Allison Janney

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  • Getty Images

    Mark Harmon, Jamie Lee Curtis
  • Getty Images

    Mark Harmon, of the television show ‘NCIS,’ speaks during the CBS portion of the 2012 Television Critics Association Press Tour at The Langham Huntington Hotel and Spa, Pasadena, on January 11, 2012
  • Getty Premium

    Brian Dietzen, David McCallum, Pauley Perrette, Mark Harmon, Sean Murray, Cote de Pablo and Michael Weatherly celebrate the 200th episode of ‘NCIS,’ Valencia, Calif., January 3, 2011
  • WireImage

    “NCIS” star Mark Harmon arrives at “The Late Show With David Letterman” at the Ed Sullivan Theater, NYC, on May 10, 2011
  • CBS

    Mark Harmon as Jethro Gibbs on “NCIS,” CBS, 2010
  • CBS

    Michael Weatherly as Tony and Mark Harmon as Gibbs on ‘NCIS’
  • AP

    Mark Harmon looks very classic for the event
  • NBC

    Mark Harmon and Allison Janney