
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).

General Wegman
1993
Walt Crane
1993
Admiral Rockerly
1995
Vendor
1985
Fire Chief
1993
Police Captain
2001
Alfie Girdler
1982
Surveillant
1979
Superior
1979
Investigator
1979
Admiral Gardner
2001
Arnold Anderson
1989
Mario
1981
Detective McConnell
1981
Todd Morris
1974
Victor Sherman
1974
Trevor Lockley
1999
Wally
1994
Police Officer
1982
Barry Constansas
2001
Mr. Zewecki
1982
I.A.D. Officer #2
1984
Eugene Clark
1996
Bert Shaw
1996
Fireman
1974

Col. Alan Drake
1997
Jameson
1987
Det. Spitz
1996
Lawton
1973
I. A. D. Man
1973
Mr. Bradford
2005
Language Lab Director
1973
Lt. Doyle
1984
Zach
1984
Riverside Captain
2007
Karl
1998
Police Chief
1997
NATO Colonel
1999
Technician
1985