
Acting · 82 years old
Scranton, Pennsylvania, USA
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).

The X-Files
General Wegman

Zoey 101
Mr. Bradford

Angel
Trevor Lockley

L.A. Confidential
Police Chief

The Exorcist
Language Lab Director

MacGyver
Vendor

Frasier
Walt Crane

Hill Street Blues
Mario

Hill Street Blues
Detective McConnell

The Rockford Files
Todd Morris

The Rockford Files
Victor Sherman

Star Trek: Enterprise
Admiral Gardner

Knight Rider
Alfie Girdler

Victims for Victims: The Theresa Saldana Story

Zodiac
Riverside Captain

The Pretender
Eugene Clark

JAG
Admiral Rockerly

Manimal
Man

Crossing Jordan
Police Captain

Touched by an Angel
Wally