
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).
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).
IMDb: https://www.imdb.com/title/nm0537089
Wikipedia: https://www.wikidata.org/wiki/Q110293003
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A Call to Arms
Character:Major General Cosgrove USMC
Release Date:13/03/2009

Zodiac
Character:Riverside Captain
Release Date:02/03/2007

Just Ask My Children
Character:Judge Ferguson
Release Date:10/09/2001

Austin Powers: The Spy Who Shagged Me
Character:NATO Colonel
Release Date:08/06/1999

Armageddon
Character:Karl
Release Date:01/07/1998

L.A. Confidential
Character:Police Chief
Release Date:19/09/1997

The American President
Character:Chairman of the Joint Chiefs
Release Date:17/11/1995

Roswell
Character:Red Hat Vet
Release Date:31/07/1994

Final Shot: The Hank Gathers Story
Character:LMU Coach
Release Date:01/04/1992

The People Under the Stairs
Character:Police Sergeant
Release Date:01/11/1991

One False Move
Character:Chief Jenkins
Release Date:12/10/1991

The Couch Trip
Character:Police Captain
Release Date:15/01/1988

Six Against the Rock
Character:Officer Bill Miller
Release Date:18/05/1987

Betrayed by Innocence
Character:Bailiff
Release Date:01/03/1986

Victims for Victims: The Theresa Saldana Story
Character:
Release Date:12/11/1984

Someone's Watching Me!
Character:Frimsin
Release Date:29/11/1978

A Killing Affair
Character:Det. Shoup
Release Date:21/09/1977

Collision Course: Truman vs. MacArthur
Character:Gen. Hoyt Vandenberg
Release Date:04/01/1976

The Exorcist
Character:Language Lab Director
Release Date:26/12/1973

Zoey 101
Character:Mr. Bradford

Star Trek: Enterprise
Character:Admiral Gardner

Crossing Jordan
Character:Police Captain

The Division
Character:Barry Constansas

Angel
Character:Trevor Lockley

Just Shoot Me!
Character:Col. Alan Drake

Profiler
Character:Det. Spitz

The Pretender
Character:Eugene Clark

JAG
Character:Admiral Rockerly

Touched by an Angel
Character:Wally

Diagnosis: Murder
Character:Fire Chief

Frasier
Character:Walt Crane

The X-Files
Character:General Wegman

Flesh 'n' Blood
Character:Holly's Dad

Baywatch
Character:Arnold Anderson

Jake and the Fatman
Character:Jameson

Misfits of Science
Character:Technician

MacGyver
Character:Vendor

Crazy like a Fox
Character:Lt. Doyle

Crazy like a Fox
Character:Zach

Hunter
Character:I.A.D. Officer #2

Scarecrow and Mrs. King
Character:

Manimal
Character:Man

St. Elsewhere
Character:Police Officer

Knight Rider
Character:Alfie Girdler

T. J. Hooker
Character:Mr. Zewecki

Hill Street Blues
Character:Mario

Hill Street Blues
Character:Detective McConnell

Knots Landing
Character:Surveillant

Knots Landing
Character:Superior

Knots Landing
Character:Investigator

The Rockford Files
Character:Todd Morris

Police Woman
Character:Fireman

The Rockford Files
Character:Victor Sherman

Kojak
Character:Lawton

Kojak
Character:I. A. D. Man