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Personal Info

Known For

Acting

Known Credits

53

Gender

Male

Birthday

1938-02-02

Day of Death

2020-05-03 (82 years old)

Place of Birth

Scranton, Pennsylvania, USA

Also Known As

John Mahon

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).

Known For

Acting

A Call to Arms

2009

A Call to Arms

as

Major General Cosgrove USMC

The Couch Trip

1988

The Couch Trip

as

Police Captain

A Killing Affair

1977

A Killing Affair

as

Det. Shoup

The American President

1995

The American President

as

Chairman of the Joint Chiefs

Collision Course: Truman vs. MacArthur

1976

Collision Course: Truman vs. MacArthur

as

Gen. Hoyt Vandenberg

Six Against the Rock

1987

Six Against the Rock

as

Officer Bill Miller

One False Move

1991

One False Move

as

Chief Jenkins

The People Under the Stairs

1991

The People Under the Stairs

as

Police Sergeant

L.A. Confidential

1997

L.A. Confidential

as

Police Chief

Armageddon

1998

Armageddon

as

Karl

Just Ask My Children

2001

Just Ask My Children

as

Judge Ferguson

The Exorcist

1973

The Exorcist

as

Language Lab Director

Zodiac

2007

Zodiac

as

Riverside Captain

JAG

JAG

as

Admiral Rockerly

Zoey 101

Zoey 101

as

Mr. Bradford

Crossing Jordan

Crossing Jordan

as

Police Captain

Diagnosis: Murder

Diagnosis: Murder

as

Fire Chief

The X-Files

The X-Files

as

General Wegman

The Rockford Files

The Rockford Files

as

Todd Morris

Baywatch

Baywatch

as

Arnold Anderson

Frasier

Frasier

as

Walt Crane

Crazy like a Fox

Crazy like a Fox

as

Lt. Doyle

Angel

Angel

as

Trevor Lockley

Profiler

Profiler

as

Det. Spitz

The Pretender

The Pretender

as

Eugene Clark

MacGyver

MacGyver

as

Vendor

Hunter

Hunter

as

I.A.D. Officer #2

Manimal

Manimal

as

Man

Police Woman

Police Woman

as

Fireman

St. Elsewhere

St. Elsewhere

as

Police Officer

Hill Street Blues

Hill Street Blues

as

Detective McConnell

Kojak

Kojak

as

Lawton

Kojak

Kojak

as

I. A. D. Man

Knight Rider

Knight Rider

as

Alfie Girdler

The Rockford Files

The Rockford Files

as

Victor Sherman

Star Trek: Enterprise

Star Trek: Enterprise

as

Admiral Gardner

Just Shoot Me!

Just Shoot Me!

as

Col. Alan Drake

Misfits of Science

Misfits of Science

as

Technician

Flesh 'n' Blood

Flesh 'n' Blood

as

Holly's Dad

Knots Landing

Knots Landing

as

Surveillant

Knots Landing

Knots Landing

as

Superior

Knots Landing

Knots Landing

as

Investigator

T. J. Hooker

T. J. Hooker

as

Mr. Zewecki

Production

Crew

Directing