John Mahon
Acting
John Patrick Mahon (February 2, 1938 - May 3, 2020) was an American film, stage and television actor. He was known for Armageddon (1998), L.A. Confidential (1997) and Zodiac (2007).
TV Shows(31)
Zoey 101
Mr. Bradford
2005
Star Trek: Enterprise
Admiral Gardner
2001
Crossing Jordan
Police Captain
2001
The Division
Barry Constansas
2001
Angel
Trevor Lockley
1999
Just Shoot Me!
Col. Alan Drake
1997
Profiler
Det. Spitz
1996
The Pretender
Eugene Clark
1996
Arli$$
Bert Shaw
1996
JAG
Admiral Rockerly
1995
Touched by an Angel
Wally
1994
Diagnosis: Murder
Fire Chief
1993
Frasier
Walt Crane
1993
The X-Files
General Wegman
1993
Flesh 'n' Blood
Holly's Dad
1991
Baywatch
Arnold Anderson
1989
Jake and the Fatman
Jameson
1987
Misfits of Science
Technician
1985
MacGyver
Vendor
1985
Crazy like a Fox
Lt. Doyle
1984
Hunter
I.A.D. Officer #2
1984
Scarecrow and Mrs. King
1983
Manimal
Man
1983
St. Elsewhere
Police Officer
1982
Knight Rider
Alfie Girdler
1982
T. J. Hooker
Mr. Zewecki
1982
Hill Street Blues
Detective McConnell
1981
Knots Landing
Surveillant
1979
The Rockford Files
Todd Morris
1974
Police Woman
Fireman
1974
Kojak
Lawton
1973
Movies(19)
A Call to Arms
Major General Cosgrove USMC
2009
Zodiac
Riverside Captain
2007
Just Ask My Children
Judge Ferguson
2001
Austin Powers: The Spy Who Shagged Me
NATO Colonel
1999
Armageddon
Karl
1998
L.A. Confidential
Police Chief
1997
The American President
Chairman of the Joint Chiefs
1995
Roswell
Red Hat Vet
1994
Final Shot: The Hank Gathers Story
LMU Coach
1992
The People Under the Stairs
Police Sergeant
1991
One False Move
Chief Jenkins
1991
The Couch Trip
Police Captain
1988
Six Against the Rock
Officer Bill Miller
1987
Betrayed by Innocence
Bailiff
1986
Victims for Victims: The Theresa Saldana Story
1984
Someone's Watching Me!
Frimsin
1978
A Killing Affair
Det. Shoup
1977
Collision Course: Truman vs. MacArthur
Gen. Hoyt Vandenberg
1976
The Exorcist
Language Lab Director
1973