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 Exorcist
The People Under the Stairs
Armageddon
Austin Powers: The Spy Who Shagged Me
Zodiac
A Killing Affair
The American President
One False Move
The Couch Trip
Someone's Watching Me!
Six Against the Rock
Just Ask My Children
Betrayed by Innocence
Final Shot: The Hank Gathers Story
Victims for Victims: The Theresa Saldana Story
A Call to Arms
L.A. Confidential
Collision Course: Truman vs. MacArthur
