Portrait of John Mahon

John Mahon

Acting

Biography

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).

Born: February 2, 1938

Place of Birth: Scranton, Pennsylvania, USA

Filmography

2009
A Call to Arms

as Major General Cosgrove USMC

2007
Zodiac

as Riverside Captain

2005
Zoey 101

as Mr. Bradford

2001
Star Trek: Enterprise

as Admiral Gardner

2001
Crossing Jordan

as Police Captain

2001
Just Ask My Children

as Judge Ferguson

2001
The Division

as Barry Constansas

1999
Angel

as Trevor Lockley

1998
Armageddon

as Karl

1997
L.A. Confidential

as Police Chief

1997
Just Shoot Me!

as Col. Alan Drake

1996
Profiler

as Det. Spitz

1996
The Pretender

as Eugene Clark

1995
The American President

as Chairman of the Joint Chiefs

1995
JAG

as Admiral Rockerly

1994
Roswell

as Red Hat Vet

1993
Diagnosis: Murder

as Fire Chief

1993
Frasier

as Walt Crane

1993
The X-Files

as General Wegman

1991
The People Under the Stairs

as Police Sergeant

1991
One False Move

as Chief Jenkins

1989
Baywatch

as Arnold Anderson

1988
The Couch Trip

as Police Captain

1987
1987
Six Against the Rock

as Officer Bill Miller

1986
1985
Misfits of Science

as Technician

1985
MacGyver

as Vendor

1984
Crazy like a Fox

as Lt. Doyle

1984
1984
Hunter

as I.A.D. Officer #2

1983
Manimal

as Man

1982
St. Elsewhere

as Police Officer

1982
Knight Rider

as Alfie Girdler

1982
T. J. Hooker

as Mr. Zewecki

1981
Hill Street Blues

as Detective McConnell

1981
1979
Knots Landing

as Surveillant

1979
Knots Landing

as Superior

1979
Knots Landing

as Investigator

1977
A Killing Affair

as Det. Shoup

1976
1974
The Rockford Files

as Todd Morris

1974
The Rockford Files

as Victor Sherman

1974
Police Woman

as Fireman

1973
The Exorcist

as Language Lab Director

1973
Kojak

as Lawton

1973
Kojak

as I. A. D. Man