Movies (Acting Roles)
![A Call to Arms Poster of A Call to Arms](//actoragecheck.com/image/L29Ud3VUTTZ2UUhaVzd6NGg1UmR6NjdHbDlNdS5qcGcAACh231.jpg)
A Call to Arms
John Mahon was
71 in A Call to Arms
as 'Major General Cosgrove USMC'.
Fri, Mar 13 2009
![Zodiac Poster of Zodiac](//actoragecheck.com/image/LzZZbWVPNHBCN1hUaDhQOEY5NjBPMXVBMTRKTy5qcGcAACh231.jpg)
Zodiac
John Mahon was
69 in Zodiac
as 'Riverside Captain'.
Fri, Mar 02 2007
![Armageddon Poster of Armageddon](//actoragecheck.com/image/L2VUTTNxdEdoRFU4Y3ZqcG9hNktFdDVFMmF1VS5qcGcAACh231.jpg)
Armageddon
John Mahon was
60 in Armageddon
as 'Karl'.
Wed, Jul 01 1998
![L.A. Confidential Poster of L.A. Confidential](//actoragecheck.com/image/L2xXQ2dmNXNENUZwTWxqanBrUmhjQzhwWGNjaC5qcGcAACh231.jpg)
L.A. Confidential
John Mahon was
59 in L.A. Confidential
as 'Police Chief'.
Fri, Sep 19 1997
![The American President Poster of The American President](//actoragecheck.com/image/L3lPYk9BWUZJSFhIa0ZQUTNqaGdrTjJlemFELmpwZw=AACh231.jpg)
The American President
John Mahon was
57 in The American President
as 'Chairman of the Joint Chiefs'.
Fri, Nov 17 1995
![One False Move Poster of One False Move](//actoragecheck.com/image/L3g1eENrR3c0anV0TWNjOG5tV0xLTnpiREtodC5qcGcAACh231.jpg)
One False Move
John Mahon was
54 in One False Move
as 'Chief Jenkins'.
Fri, May 08 1992
![The Couch Trip Poster of The Couch Trip](//actoragecheck.com/image/L2prMHF4N1h5RllLSzFmbFhieE8xTjN6NnpBZC5qcGcAACh231.jpg)
The Couch Trip
John Mahon was
49 in The Couch Trip
as 'Police Captain'.
Fri, Jan 15 1988
![Six Against the Rock Poster of Six Against the Rock](//actoragecheck.com/image/L2IxempCQTJXV3ZZcE9rbmJVVzM4Rm02a0R3TC5qcGcAACh231.jpg)
Six Against the Rock
John Mahon was
49 in Six Against the Rock
as 'Officer Bill Miller'.
Mon, May 18 1987
![A Killing Affair Poster of A Killing Affair](//actoragecheck.com/image/L2hiYjNZMjd1czZneDluQnBFT2NNVWN2aDdxQi5qcGcAACh231.jpg)
A Killing Affair
John Mahon was
39 in A Killing Affair
as 'Det. Shoup'.
Wed, Sep 21 1977
![The Exorcist Poster of The Exorcist](//actoragecheck.com/image/LzV4MENlVkhKSTh0Y0R4OHRVVXdZSFFTTklMcS5qcGcAACh231.jpg)
The Exorcist
John Mahon was
35 in The Exorcist
as 'Language Lab Director'.
Wed, Dec 26 1973
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 ages![Zoey 101 Poster of Zoey 101](//actoragecheck.com/image/L0EzTzJCNGNIRXlNcHZrbnJkRzRiY1Y0ZWFZaC5qcGcAACh231.jpg)
Zoey 101
John Mahon was
66+ in Zoey 101
as 'Mr. Bradford'.
First Air Date
Sun, Jan 09 2005
![Star Trek: Enterprise Poster of Star Trek: Enterprise](//actoragecheck.com/image/L3RzYkJUQUJ0Tmd1MHljc0ZwbkloaVE1d29PTS5qcGcAACh231.jpg)
Star Trek: Enterprise
John Mahon was
63+ in Star Trek: Enterprise
as 'Admiral Gardner'.
First Air Date
Wed, Sep 26 2001
![Crossing Jordan Poster of Crossing Jordan](//actoragecheck.com/image/L2J5d0ZvSG9MWnZXMnZ4RGM3bjRUb0FLa1IweS5qcGcAACh231.jpg)
Crossing Jordan
John Mahon was
63+ in Crossing Jordan
as 'Police Captain'.
First Air Date
Mon, Sep 24 2001
![Angel Poster of Angel](//actoragecheck.com/image/L3pNQ0xwUWNzeW40Y2VRNktXRW5IZlVGRGhWaC5qcGcAACh231.jpg)
Angel
John Mahon was
61+ in Angel
as 'Trevor Lockley'.
First Air Date
Tue, Oct 05 1999
![Just Shoot Me! Poster of Just Shoot Me!](//actoragecheck.com/image/L3hQMkp1YWJpSnZ2bVZ2R3NIakRqNElMOGdjTy5qcGcAACh231.jpg)
Just Shoot Me!
John Mahon was
59+ in Just Shoot Me!
as 'Col. Alan Drake'.
First Air Date
Tue, Mar 04 1997
![Profiler Poster of Profiler](//actoragecheck.com/image/L3JaUEZTMkNSTVpPeTJMVjRoRTY0S0J4QWJHZy5qcGcAACh231.jpg)
Profiler
John Mahon was
58+ in Profiler
as 'Det. Spitz'.
First Air Date
Sat, Sep 21 1996
![The Pretender Poster of The Pretender](//actoragecheck.com/image/Lzc2cTV0UE9QUWtRWUl1WnUyU0c2dmlaY3AyYi5qcGcAACh231.jpg)
The Pretender
John Mahon was
58+ in The Pretender
as 'Eugene Clark'.
First Air Date
Thu, Sep 19 1996
![JAG Poster of JAG](//actoragecheck.com/image/L3pQeUhwa0paNU8wOGxiZ3JRUUlST1h0YjN4ei5qcGcAACh231.jpg)
JAG
John Mahon was
57+ in JAG
as 'Admiral Rockerly'.
First Air Date
Sat, Sep 23 1995
![Diagnosis: Murder Poster of Diagnosis: Murder](//actoragecheck.com/image/LzV5aG96ZVkyS2dZWFFRRTlrZmJpSXl5cFlpSS5qcGcAACh231.jpg)
Diagnosis: Murder
John Mahon was
55+ in Diagnosis: Murder
as 'Fire Chief'.
First Air Date
Fri, Oct 29 1993
![Frasier Poster of Frasier](//actoragecheck.com/image/L2dZQWI2R0NWRUZzVTloek1DRzVyeGF4b0l2My5qcGcAACh231.jpg)
Frasier
John Mahon was
55+ in Frasier
as 'Walt Crane'.
First Air Date
Thu, Sep 16 1993
![The X-Files Poster of The X-Files](//actoragecheck.com/image/LzVCRDBraVRHbkR4T05xZHJzc3dUZXduazZXSC5qcGcAACh231.jpg)
The X-Files
John Mahon was
55+ in The X-Files
as 'General Wegman'.
First Air Date
Fri, Sep 10 1993
![Flesh 'n' Blood Poster of Flesh 'n' Blood](//actoragecheck.com/lost-image.jpg)
Flesh 'n' Blood
John Mahon was
53+ in Flesh 'n' Blood
as 'Holly's Dad'.
First Air Date
Thu, Sep 19 1991
![Baywatch Poster of Baywatch](//actoragecheck.com/image/LzM0dDhXeEhuMU9jSVZwY1R4bWpZbWpYOXRFNC5qcGcAACh231.jpg)
Baywatch
John Mahon was
51+ in Baywatch
as 'Arnold Anderson'.
First Air Date
Sun, Apr 23 1989
![Jake and the Fatman Poster of Jake and the Fatman](//actoragecheck.com/image/LzNXQmtlcGlUd2dlbUdEWmFkeUpUVjVTbVM0bC5qcGcAACh231.jpg)
Jake and the Fatman
John Mahon was
49+ in Jake and the Fatman
as 'Jameson'.
First Air Date
Sat, Sep 26 1987
![Misfits of Science Poster of Misfits of Science](//actoragecheck.com/image/LzEwRzN1TU9ObGxBd2xMNHFmdkpGRFY4Wms1UC5qcGcAACh231.jpg)
Misfits of Science
John Mahon was
47+ in Misfits of Science
as 'Technician'.
First Air Date
Fri, Oct 04 1985
![MacGyver Poster of MacGyver](//actoragecheck.com/image/LzdxNHU2bFhYUVIyd2NQMkZudkg5UHBaN1Fpci5qcGcAACh231.jpg)
MacGyver
John Mahon was
47+ in MacGyver
as 'Vendor'.
First Air Date
Sun, Sep 29 1985
![Crazy like a Fox Poster of Crazy like a Fox](//actoragecheck.com/image/L2ZSdFNjcThicGo5dmxiUkI0eXE2ZU1pWkxxcC5qcGcAACh231.jpg)
Crazy like a Fox
John Mahon was
46+ in Crazy like a Fox
as 'Lt. Doyle, Zach'.
First Air Date
Sun, Dec 30 1984
![Hunter Poster of Hunter](//actoragecheck.com/image/L2ttQzhkM0tRb3poMVNsSWloMGhkZlhzR0xlOC5qcGcAACh231.jpg)
Hunter
John Mahon was
46+ in Hunter
as 'I.A.D. Officer #2'.
First Air Date
Tue, Sep 18 1984
![Manimal Poster of Manimal](//actoragecheck.com/image/L2s5VUJycVlLWWlCcmk3aVpjTXdmMEhTcXhpcy5qcGcAACh231.jpg)
Manimal
John Mahon was
45+ in Manimal
as 'Man'.
First Air Date
Fri, Sep 30 1983
![St. Elsewhere Poster of St. Elsewhere](//actoragecheck.com/image/L21FZmNBNTZpaXNhT2ZuSzhGc1kxc1NFMndMdS5qcGcAACh231.jpg)
St. Elsewhere
John Mahon was
44+ in St. Elsewhere
as 'Police Officer'.
First Air Date
Tue, Oct 26 1982
![Knight Rider Poster of Knight Rider](//actoragecheck.com/image/L3Q1N05YelRyd3A1cm5QWGlhWDRCVGhyRHh0MS5qcGcAACh231.jpg)
Knight Rider
John Mahon was
44+ in Knight Rider
as 'Alfie Girdler'.
First Air Date
Sun, Sep 26 1982
![Hill Street Blues Poster of Hill Street Blues](//actoragecheck.com/image/L21NZnFIc09lSTB5THdpZm1mQ1JHVGFJdHZUUy5qcGcAACh231.jpg)
Hill Street Blues
John Mahon was
42+ in Hill Street Blues
as 'Detective McConnell, Mario'.
First Air Date
Thu, Jan 15 1981
![The Rockford Files Poster of The Rockford Files](//actoragecheck.com/image/L2ZuaUhFc1RlcUhNZzQxR2xDWUp4WlZndG43SC5qcGcAACh231.jpg)
The Rockford Files
John Mahon was
36+ in The Rockford Files
as 'Victor Sherman, Todd Morris'.
First Air Date
Fri, Sep 13 1974
![Police Woman Poster of Police Woman](//actoragecheck.com/image/L2xlRjYyV0hmakpTNFN1OUFqRG96NGN1cU83ay5qcGcAACh231.jpg)
Police Woman
John Mahon was
36+ in Police Woman
as 'Fireman'.
First Air Date
Fri, Sep 13 1974
![Kojak Poster of Kojak](//actoragecheck.com/image/LzdGMWVIOTdCcGk4elFiYzE3MmRyYkpDc09zRy5qcGcAACh231.jpg)
Kojak
John Mahon was
35+ in Kojak
as 'Lawton, I. A. D. Man'.
First Air Date
Wed, Oct 24 1973