Thomas Mark Harmon (born September 2, 1951) is an American actor.
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Mark Harmon's 'NCIS' Character Almost Had a Completely Different Name
Inside Mark Harmon’s Drama With ‘NCIS’ Costar Michael Weatherly: ‘Nothing But Trouble’
Why Mark Harmon Wasn’t in NCIS’ David McCallum Tribute Episode
'NCIS' Boss Explains Why Mark Harmon Didn't Return for Ducky's Funeral, Reveals If He'll Ever Come Back
‘NCIS’ EPs Explain Why Mark Harmon Didn’t Return for Ducky Funeral
Here's Why Mark Harmon Didn't Appear in NCIS' David McCallum Tribute Episode
Who Should Play Young Gibbs in 'NCIS: Origins'? Vote for Mark Harmon's Successor!
‘NCIS’ Prequel Series Ordered at CBS — But Will Mark Harmon Return?
'NCIS' Prequel Series About Young Gibbs in the Works with Mark Harmon Producing Alongside His Son
‘NCIS: Origins’ Prequel About Young Gibbs Ordered By CBS From Mark Harmon, Sean Harmon, Gina Lucita Monreal & David J. North
Kelly Clarkson, 41, shows off her weight loss in a green-and-white dress as she interviews Mark Harmon who teases a Freaky Friday sequel
Mark Harmon's 'NCIS' Character Almost Had a Different Name!
Mark Harmon Did Not Expect to Like 'NCIS' -- and Almost Had Another Name on the Show (Exclusive)
‘NCIS’ Stars React to David McCallum’s Death: Mark Harmon & More
Will Mark Harmon Return to ‘NCIS’? Actor Can’t Make Up His Mind Amid New WWII Book
NCIS alum Mark Harmon co-authors book about real-life NCIS operation during Pearl Harbor
Mark Harmon Writes Book Based On How Real NCIS Agency Came To Be; Will Debut In November
Mark Harmon and Leon Carroll Jr. to Release Real-Life 'NCIS' Story in Non-Fiction Book 'Ghosts of Honolulu'
'NCIS' 450th Episode Celebrates Mark Harmon's Tenure & Producer Opened Up About Gibbs' Possible Return
'NCIS' Cast Credits Mark Harmon for Having Led Franchise With 'Integrity' Amid 450 Episodes (Exclusive)
