John Mahon

Born: 1938-02-02

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).


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as Language Lab Director
Released: 1973-12-26

When a charming 12-year-old girl takes on the characteristics and voices of others, doctors say...

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See!

Zodiac

as Riverside Captain
Released: 2007-03-02

The zodiac murders cause the lives of Paul Avery, David Toschi and Robert Graysmith to intersect.

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as Karl
Released: 1998-07-01

When an asteroid threatens to collide with Earth, NASA honcho Dan Truman determines the only way...

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as NATO Colonel
Released: 1999-06-08

When diabolical genius Dr. Evil travels back in time to steal superspy Austin Powers's ‘mojo,’...

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as Police Chief
Released: 1997-09-19

Three detectives in the corrupt and brutal L.A. police force of the 1950s use differing methods...

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Don't See

The American President

as Chairman of the Joint Chiefs
Released: 1995-11-17

Widowed U.S. president Andrew Shepherd, one of the world's most powerful men, can have anything...

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The People Under the Stairs

as Police Sergeant
Released: 1991-11-01

Trapped inside a fortified home owned by a mysterious couple, a young boy quickly learns the...

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One False Move

as Chief Jenkins
Released: 1991-10-12

Following a series of drug deals and murders, three criminals -- Fantasia, Ray Malcolm and Pluto...

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Someone's Watching Me!

as Frimsin
Released: 1978-11-29

A young woman moves to a high-rise apartment building and soon begins to be tormented by an...

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The Couch Trip

as Police Captain
Released: 1988-01-15

The escaped delinquent John W. Burns, Jr. replaces Dr. Maitlin on a radio show, saying he's the...

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Victims for Victims: The Theresa Saldana Story

as uncredited
Released: 1984-11-12

Before stalking was a well-known crime in North America, there was Theresa Saldana's story. A...

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A Killing Affair

as Det. Shoup
Released: 1977-09-21

A white female detective is partnered with a black male detective to find the person who is...

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Just Ask My Children

as Judge Ferguson
Released: 2001-09-10

Based on the true story of a modern-day witch hunt, in which a couple is falsely accused and...

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Six Against the Rock

as Officer Bill Miller
Released: 1987-05-18

In May of 1946, Alcatraz inmate Bernie Coy initiates a carefully thought out plan to escape the...

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Final Shot: The Hank Gathers Story

as LMU Coach
Released: 1992-04-01

Chronicling the short but eventful life of Hank Gathers (played by Donny B. Lord as a child and...

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Betrayed by Innocence

as Bailiff
Released: 1986-03-01

A married commercial filmmaker (Barry Bostwick) is charged with statutory rape when it is...

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A Call to Arms

as Major General Cosgrove USMC
Released: 2009-03-13

A documentary which traces the controversial Anthrax Vaccine Immunization Program (AVIP) in the...

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Collision Course: Truman vs. MacArthur

as Gen. Hoyt Vandenberg
Released: 1976-01-04

U.S. President Harry S Truman and his commander in the Korean War, General Douglas MacArthur,...

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Frasier

as Walt Crane
First aired: 1993-09-16

After many years spent at the “Cheers” bar, Frasier moves back home to Seattle to work as a...

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MacGyver

as Vendor
First aired: 1985-09-29

He's everyone's favorite action hero... but he's a hero with a difference. Angus MacGyver is a...

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The X-Files

as General Wegman
First aired: 1993-09-10

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files:...

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JAG

as Admiral Rockerly
First aired: 1995-09-23

Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge...

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Baywatch

as Arnold Anderson
First aired: 1989-04-23

Join the Baywatch lifeguards on their thrilling adventures filled with beautiful beaches and...

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St. Elsewhere

as Police Officer
First aired: 1982-10-26

St. Elsewhere is an American medical drama television series that originally ran on NBC from...

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Angel

as Trevor Lockley
First aired: 1999-10-05

The vampire Angel, cursed with a soul, moves to Los Angeles and aids people with...

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Star Trek: Enterprise

as Admiral Gardner
First aired: 2001-09-26

During the mid-22nd century, a century before Captain Kirk's five-year mission, Jonathan Archer...

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Knots Landing

as Surveillant
First aired: 1979-12-27

The domestic adventures, misdeeds and everyday interactions of five families living on a...

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Knots Landing

as Superior
First aired: 1979-12-27

The domestic adventures, misdeeds and everyday interactions of five families living on a...

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Knots Landing

as Investigator
First aired: 1979-12-27

The domestic adventures, misdeeds and everyday interactions of five families living on a...

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Diagnosis: Murder

as Fire Chief
First aired: 1993-10-29

Dr. Mark Sloan is a good-natured, offbeat physician who is called upon to solve murders.

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Crossing Jordan

as Police Captain
First aired: 2001-09-24

Crossing Jordan is an American television crime/drama series that stars Jill Hennessy as Jordan...

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Knight Rider

as Alfie Girdler
First aired: 1982-09-26

Michael Long, an undercover police officer, is shot while investigating a case and left for dead...

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The Rockford Files

as Todd Morris
First aired: 1974-09-13

Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con...

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The Rockford Files

as Victor Sherman
First aired: 1974-09-13

Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con...

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Police Woman

as Fireman
First aired: 1974-09-13

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los...

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Hill Street Blues

as Detective McConnell
First aired: 1981-01-15

A realistic glimpse into the daily lives of the officers and detectives at an urban police station.

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Hill Street Blues

as Mario
First aired: 1981-01-15

A realistic glimpse into the daily lives of the officers and detectives at an urban police station.

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The Pretender

as Eugene Clark
First aired: 1996-09-19

Raised in a secret facility built for experimenting on children, Jarod is a genius who can...

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Zoey 101

as Mr. Bradford
First aired: 2005-01-09

Zoey 101 is an American television series which originally aired on Nickelodeon from January 9,...

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Touched by an Angel

as Wally
First aired: 1994-09-21

Monica, an angel, is tasked with bringing guidance and messages from God to various people who...

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Scarecrow and Mrs. King

as uncredited
First aired: 1983-10-03

Scarecrow and Mrs. King is an American television series that aired from October 3, 1983, to May...

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Jake and the Fatman

as Jameson
First aired: 1987-09-26

Jake and the Fatman is a television crime drama starring William Conrad as prosecutor J. L....

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Just Shoot Me!

as Col. Alan Drake
First aired: 1997-03-04

Just Shoot Me! is an American television sitcom that aired for seven seasons on NBC from March...

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Crazy like a Fox

as Lt. Doyle
First aired: 1984-12-30

Crazy Like a Fox is an American television series set in San Francisco, California, that aired...

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Crazy like a Fox

as Zach
First aired: 1984-12-30

Crazy Like a Fox is an American television series set in San Francisco, California, that aired...

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Kojak

as Lawton
First aired: 1973-10-24

A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New...

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Kojak

as I. A. D. Man
First aired: 1973-10-24

A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New...

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Hunter

as I.A.D. Officer #2
First aired: 1984-09-18

Hunter is an American police drama television series created by Frank Lupo, and starring Fred...

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Profiler

as Det. Spitz
First aired: 1996-09-21

Rachel Burke is a criminal profiler, one of the best, actually. She, along with a sophisticated...

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Misfits of Science

as Technician
First aired: 1985-10-04

A superhero fantasy television series featuring super-powered humans and their madcap adventures.

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Manimal

as Man
First aired: 1983-09-30

Jonathan Chase was a British college professor at New York University who had the unusual...

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