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).
Major General Cosgrove USMC
Film 2009
Det. Shoup
Film 1977
Frimsin
Film 1978
Gen. Hoyt Vandenberg
Film 1976
Officer Bill Miller
Film 1987
Film 1984
Chief Jenkins
Film 1991
LMU Coach
Film 1992
Judge Ferguson
Film 2001
Bailiff
Film 1986
Admiral Rockerly
Tv 1995
Mr. Bradford
Tv 2005
General Wegman
Tv 1993
Todd Morris
Tv 1974
Arnold Anderson
Tv 1989
Walt Crane
Tv 1993
Trevor Lockley
Tv 1999
Det. Spitz
Tv 1996
Eugene Clark
Tv 1996
Man
Tv 1983
I.A.D. Officer #2
Tv 1984
Tv 1983
Alfie Girdler
Tv 1982
Victor Sherman
Tv 1974
Admiral Gardner
Tv 2001
Col. Alan Drake
Tv 1997
Holly's Dad
Tv 1991