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).
Maggie
... 2022
The Happy Sad
... 2013
Silent Hill: Revelation 3D
... 2012
Ra.One
... 2011
Rite of the Shaman
... 2022
Blood Delirium
... 1988
Things Heard & Seen
... 2021
This Is It
... 2009
The English Patient
... 1996