Actor | Producer
John Patrick Mahon (February 2, 1938 - May 3, 2020) was an American film, stage and television actor. He was known f...
The People Under the Stairs
... 1991
The Exorcist
... 1973
Zodiac
... 2007
Armageddon
... 1998
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).
Fear Street: 1666
... 2021
Madame Web
... 2024
Murder Manual
... 2020
Confidential Assignment 2: International
... 2022
Inhuman Kiss
... 2019
Yella
... 2007
Bad Family
... 2010
A Chinese Odyssey Part One: Pandora's Box
... 1995
Toy Story 4
... 2019