Actor profile

John Mahon

2nd February 1938 Scranton, Pennsylvania, USA 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).

20 Movies 36 TV Shows 57 Credits

Filmography

Movies & TV Shows

Star Trek: Enterprise - In a Mirror, Darkly poster

Star Trek: Enterprise - In a Mirror, Darkly 1st April 2014 as Adm. Gardner (Mirror)

A Call to Arms poster

A Call to Arms 13th March 2009 as Major General Cosgrove USMC

Zodiac poster

Zodiac 2nd March 2007 as Riverside Captain

Just Ask My Children poster

Just Ask My Children 10th September 2001 as Judge Ferguson

Austin Powers: The Spy Who Shagged Me poster

Austin Powers: The Spy Who Shagged Me 8th June 1999 as NATO Colonel

Armageddon poster

Armageddon 1st July 1998 as Karl

L.A. Confidential poster

L.A. Confidential 19th September 1997 as Police Chief

The American President poster

The American President 17th November 1995 as Chairman of the Joint Chiefs

Roswell poster

Roswell 31st July 1994 as Red Hat Vet

One False Move poster

One False Move 8th May 1992 as Chief Jenkins

Final Shot: The Hank Gathers Story poster

Final Shot: The Hank Gathers Story 1st April 1992 as LMU Coach

The People Under the Stairs poster

The People Under the Stairs 1st November 1991 as Police Sergeant

The Couch Trip poster

The Couch Trip 15th January 1988 as Police Captain

Six Against the Rock poster

Six Against the Rock 18th May 1987 as Officer Bill Miller

Betrayed by Innocence poster

Betrayed by Innocence 1st March 1986 as Bailiff

Victims for Victims: The Theresa Saldana Story poster

Victims for Victims: The Theresa Saldana Story 12th November 1984

Someone's Watching Me! poster

Someone's Watching Me! 29th November 1978 as Frimsin

A Killing Affair poster

A Killing Affair 21st September 1977 as Det. Shoup

Collision Course: Truman vs. MacArthur poster

Collision Course: Truman vs. MacArthur 4th January 1976 as Gen. Hoyt Vandenberg

The Exorcist poster

The Exorcist 26th December 1973 as Language Lab Director

Zoey 101 poster

Zoey 101 9th January 2005 as Mr. Bradford

Star Trek: Enterprise poster

Star Trek: Enterprise 26th September 2001 as Admiral Gardner

Crossing Jordan poster

Crossing Jordan 24th September 2001 as Police Captain

The Division poster

The Division 7th January 2001 as Barry Constansas

Angel poster

Angel 5th October 1999 as Trevor Lockley

Just Shoot Me! poster

Just Shoot Me! 4th March 1997 as Col. Alan Drake

Profiler poster

Profiler 21st September 1996 as Det. Spitz

The Pretender poster

The Pretender 19th September 1996 as Eugene Clark

Arli$$ poster

Arli$$ 10th August 1996 as Bert Shaw

JAG poster

JAG 23rd September 1995 as Admiral Rockerly

Touched by an Angel poster

Touched by an Angel 21st September 1994 as Wally

Diagnosis: Murder poster

Diagnosis: Murder 29th October 1993 as Fire Chief

Frasier poster

Frasier 16th September 1993 as Walt Crane

The X-Files poster

The X-Files 10th September 1993 as General Wegman

Baywatch poster

Baywatch 23rd April 1989 as Arnold Anderson

Jake and the Fatman poster

Jake and the Fatman 26th September 1987 as Jameson

Misfits of Science poster

Misfits of Science 4th October 1985 as Technician

MacGyver poster

MacGyver 29th September 1985 as Vendor

Crazy like a Fox poster

Crazy like a Fox 30th December 1984 as Lt. Doyle

Crazy like a Fox poster

Crazy like a Fox 30th December 1984 as Zach

Hunter poster

Hunter 18th September 1984 as IAD Officer #2

Scarecrow and Mrs. King poster

Scarecrow and Mrs. King 3rd October 1983

Manimal poster

Manimal 30th September 1983 as Man

St. Elsewhere poster

St. Elsewhere 26th October 1982 as Police Officer

Knight Rider poster

Knight Rider 26th September 1982 as Alfie Girdler

T. J. Hooker poster

T. J. Hooker 13th March 1982 as Mr. Zewecki

Hill Street Blues poster

Hill Street Blues 15th January 1981 as Mario

Hill Street Blues poster

Hill Street Blues 15th January 1981 as Detective McConnell

Knots Landing poster

Knots Landing 27th December 1979 as Surveillant

Knots Landing poster

Knots Landing 27th December 1979 as Superior

Knots Landing poster

Knots Landing 27th December 1979 as Investigator

Police Woman poster

Police Woman 13th September 1974 as Fireman

The Rockford Files poster

The Rockford Files 13th September 1974 as Todd Morris

The Rockford Files poster

The Rockford Files 13th September 1974 as Victor Sherman

Kojak poster

Kojak 24th October 1973 as Lawton

Kojak poster

Kojak 24th October 1973 as I. A. D. Man