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John Mahon

Cast & creator

John Mahon

1938-02-02 (died at 82) Scranton, Pennsylvania, USAIMDb

Best known for JAG, The X-Files, Frasier

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).

Movies

20

film credits

Series

37

television credits

Career

57

1973–2014 · acting roles

Credit score

6.9

average across scored titles

Signature credits

Known for

Ordered by popularity

JAG

JAG

Admiral Rockerly · 1995

The X-Files

The X-Files

General Wegman · 1993

Frasier

Frasier

Walt Crane · 1993

Diagnosis: Murder

Diagnosis: Murder

Fire Chief · 1993

MacGyver

MacGyver

Vendor · 1985

Across film & television

Filmography (57)

Search filmography

Showing 57 of 57 credits

JAG

JAG

Admiral Rockerly

The X-Files

The X-Files

General Wegman

Frasier

Frasier

Walt Crane

Diagnosis: Murder

Diagnosis: Murder

Fire Chief

MacGyver

MacGyver

Vendor

Knots Landing

Knots Landing

Surveillant

Knots Landing

Knots Landing

Superior

Knots Landing

Knots Landing

Investigator

Crossing Jordan

Crossing Jordan

Police Captain

Star Trek: Enterprise

Star Trek: Enterprise

Admiral Gardner

Touched by an Angel

Touched by an Angel

Wally

Knight Rider

Knight Rider

Alfie Girdler

Angel

Angel

Trevor Lockley

Hill Street Blues

Hill Street Blues

Detective McConnell

Hill Street Blues

Hill Street Blues

Mario

The Rockford Files

The Rockford Files

Todd Morris

The Rockford Files

The Rockford Files

Victor Sherman

St. Elsewhere

St. Elsewhere

Police Officer

Baywatch

Baywatch

Arnold Anderson

T. J. Hooker

T. J. Hooker

Mr. Zewecki

The Division

The Division

Barry Constansas

Jake and the Fatman

Jake and the Fatman

Jameson

Arli$$

Arli$$

Bert Shaw

The Pretender

The Pretender

Eugene Clark

Profiler

Profiler

Det. Spitz

Hunter

Hunter

IAD Officer #2

Police Woman

Police Woman

Fireman

Scarecrow and Mrs. King

Scarecrow and Mrs. King

Just Shoot Me!

Just Shoot Me!

Col. Alan Drake

Kojak

Kojak

Lawton

Kojak

Kojak

I. A. D. Man

Zoey 101

Zoey 101

Mr. Bradford

Crazy like a Fox

Crazy like a Fox

Lt. Doyle

Crazy like a Fox

Crazy like a Fox

Zach

The Exorcist

The Exorcist

Language Lab Director

Armageddon

Armageddon

Karl

L.A. Confidential

L.A. Confidential

Police Chief

Austin Powers: The Spy Who Shagged Me

Austin Powers: The Spy Who Shagged Me

NATO Colonel

Zodiac

Zodiac

Riverside Captain

Misfits of Science

Misfits of Science

Technician

Manimal

Manimal

Man

The American President

The American President

Chairman of the Joint Chiefs

The People Under the Stairs

The People Under the Stairs

Police Sergeant

Flesh 'n' Blood

Holly's Dad

One False Move

One False Move

Chief Jenkins

Someone's Watching Me!

Someone's Watching Me!

Frimsin

Roswell

Roswell

Red Hat Vet

The Couch Trip

The Couch Trip

Police Captain

Just Ask My Children

Just Ask My Children

Judge Ferguson

Star Trek: Enterprise - In a Mirror, Darkly

Star Trek: Enterprise - In a Mirror, Darkly

Adm. Gardner (Mirror)

Six Against the Rock

Six Against the Rock

Officer Bill Miller

Final Shot: The Hank Gathers Story

Final Shot: The Hank Gathers Story

LMU Coach

A Killing Affair

A Killing Affair

Det. Shoup

Collision Course: Truman vs. MacArthur

Collision Course: Truman vs. MacArthur

Gen. Hoyt Vandenberg

A Call to Arms

A Call to Arms

Major General Cosgrove USMC

Victims for Victims: The Theresa Saldana Story

Victims for Victims: The Theresa Saldana Story

Betrayed by Innocence

Betrayed by Innocence

Bailiff