
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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Also Known as

The Exorcist

L.A. Confidential

Zodiac

Armageddon

Austin Powers: The Spy Who Shagged Me

The People Under the Stairs

Roswell

The American President

A Killing Affair

Final Shot: The Hank Gathers Story

Collision Course: Truman vs. MacArthur

Someone's Watching Me!

Just Ask My Children

One False Move

Six Against the Rock

A Call to Arms

The Couch Trip

Victims for Victims: The Theresa Saldana Story

Betrayed by Innocence