John Mahon

Actor

Zodiac
2007
as Riverside Captain
Just Ask My Children
2001
as Judge Ferguson
Austin Powers: The Spy Who Shagged Me
1999
as NATO Colonel
Armageddon
1998
as Karl
L.A. Confidential
1997
as Police Chief
The American President
1995
as Chairman of the Joint Chiefs
Final Shot: The Hank Gathers Story
1992
as LMU Coach
The People Under the Stairs
1991
as Police Sergeant
One False Move
1991
as Chief Jenkins
The Couch Trip
1988
as Police Captain
Six Against the Rock
1987
as Officer Bill Miller
Betrayed by Innocence
1986
as Bailiff
Victims for Victims: The Theresa Saldana Story
1984
Someone's Watching Me!
1978
as Frimsin
A Killing Affair
1977
as Det. Shoup
Collision Course: Truman vs. MacArthur
1976
as Gen. Hoyt Vandenberg
The Exorcist
1973
as Language Lab Director