Biography

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).

Known For

The Exorcist

Language Lab Director

Zodiac

Riverside Captain

Armageddon

Karl

L.A. Confidential

Police Chief

Austin Powers: The Spy Who Shagged Me

NATO Colonel

The American President

Chairman of the Joint Chiefs

The People Under the Stairs

Police Sergeant

One False Move

Chief Jenkins