TV Shows (Acting Roles)
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate agesThe American West
Mark Harmon was
64+ in The American West
as 'Self'.
First Air Date
Sat, Jun 11 2016
NCIS: New Orleans
Mark Harmon was
63+ in NCIS: New Orleans
as 'Leroy Jethro Gibbs'.
First Air Date
Tue, Sep 23 2014
The Arsenio Hall Show
Mark Harmon was
62+ in The Arsenio Hall Show
as 'Self'.
First Air Date
Mon, Sep 09 2013
The Bonnie Hunt Show
Mark Harmon was
57+ in The Bonnie Hunt Show
as ''.
First Air Date
Mon, Sep 08 2008
The Tony Danza Show
Mark Harmon was
53+ in The Tony Danza Show
as 'Self'.
First Air Date
Mon, Sep 13 2004
NCIS
Mark Harmon was
52+ in NCIS
as 'Leroy Jethro Gibbs'.
First Air Date
Tue, Sep 23 2003
Jimmy Kimmel Live!
Mark Harmon was
51+ in Jimmy Kimmel Live!
as ''.
First Air Date
Sun, Jan 26 2003
The Legend of Tarzan
Mark Harmon was
50+ in The Legend of Tarzan
as 'Bob Markham (voice)'.
First Air Date
Mon, Sep 03 2001
And Never Let Her Go
Mark Harmon was
49+ in And Never Let Her Go
as 'Thomas Capano'.
First Air Date
Sun, Apr 01 2001
The West Wing
Mark Harmon was
48+ in The West Wing
as 'Agent Simon Donovan'.
First Air Date
Wed, Sep 22 1999
Family Guy
Mark Harmon was
47+ in Family Guy
as 'Leroy Jethro Gibbs (voice)'.
First Air Date
Sun, Jan 31 1999
The View
Mark Harmon was
45+ in The View
as 'Self'.
First Air Date
Mon, Aug 11 1997
JAG
Mark Harmon was
44+ in JAG
as 'Leroy Jethro Gibbs'.
First Air Date
Sat, Sep 23 1995
Charlie Grace
Mark Harmon was
44+ in Charlie Grace
as 'Charlie Grace'.
First Air Date
Thu, Sep 14 1995
Chicago Hope
Mark Harmon was
43+ in Chicago Hope
as 'Jack McNeil'.
First Air Date
Sun, Sep 18 1994
Harts of the West
Mark Harmon was
42+ in Harts of the West
as ''.
First Air Date
Sat, Sep 25 1993
Reasonable Doubts
Mark Harmon was
40+ in Reasonable Doubts
as 'Det. Dicky Cobb'.
First Air Date
Thu, Sep 26 1991
Moonlighting
Mark Harmon was
33+ in Moonlighting
as 'Sam Crawford'.
First Air Date
Sun, Mar 03 1985
St. Elsewhere
Mark Harmon was
31+ in St. Elsewhere
as 'Robert Caldwell'.
First Air Date
Tue, Oct 26 1982
Goliath Awaits
Mark Harmon was
30+ in Goliath Awaits
as 'Peter Cabot'.
First Air Date
Wed, Nov 11 1981
Entertainment Tonight
Mark Harmon was
30+ in Entertainment Tonight
as 'Self'.
First Air Date
Tue, Sep 15 1981
Flamingo Road
Mark Harmon was
29+ in Flamingo Road
as ''.
First Air Date
Tue, Jan 06 1981
The Dream Merchants
Mark Harmon was
28+ in The Dream Merchants
as 'Johnny Edge'.
First Air Date
Mon, May 12 1980
240-Robert
Mark Harmon was
27+ in 240-Robert
as 'Thib Thibideaux'.
First Air Date
Tue, Aug 28 1979
Centennial
Mark Harmon was
27+ in Centennial
as 'Captain John McIntosh'.
First Air Date
Sun, Oct 01 1978
Sam
Mark Harmon was
26+ in Sam
as 'Mike Breen'.
First Air Date
Tue, Mar 14 1978
The Love Boat
Mark Harmon was
26+ in The Love Boat
as 'Doug Bradbury'.
First Air Date
Sat, Sep 24 1977
All's Fair
Mark Harmon was
25+ in All's Fair
as ''.
First Air Date
Mon, Sep 20 1976
Delvecchio
Mark Harmon was
25+ in Delvecchio
as 'Ronnie Striker'.
First Air Date
Thu, Sep 09 1976
Laverne & Shirley
Mark Harmon was
24+ in Laverne & Shirley
as ''.
First Air Date
Tue, Jan 27 1976
Saturday Night Live
Mark Harmon was
24+ in Saturday Night Live
as 'Self - Host'.
First Air Date
Sat, Oct 11 1975
Police Woman
Mark Harmon was
23+ in Police Woman
as ', Stanski'.
First Air Date
Fri, Sep 13 1974
Ozzie's Girls
Mark Harmon was
22+ in Ozzie's Girls
as ''.
First Air Date
Sat, Sep 15 1973
Emergency!
Mark Harmon was
20+ in Emergency!
as ''.
First Air Date
Sat, Jan 22 1972
Adam-12
Mark Harmon was
17+ in Adam-12
as 'Officer Gus Corbin'.
First Air Date
Sat, Sep 21 1968
Hallmark Hall of Fame
Mark Harmon was
0+ in Hallmark Hall of Fame
as 'Charles'.
First Air Date
Mon, Dec 24 1951
NCIS: Origins
Mark Harmon will be
72+ in NCIS: Origins
as 'Leroy Jethro Gibbs (voice)'.
First Air Date
Unreleased