Known for Acting

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).
2007
as Riverside Captain
1973
as Language Lab Director
1998
as Karl
1997
as Police Chief
1999
as NATO Colonel
1995
as Chairman of the Joint Chiefs
1991
as Police Sergeant
1994
as Red Hat Vet
2001
as Judge Ferguson
1978
as Frimsin
1988
as Police Captain
1991
as Chief Jenkins
1976
as Gen. Hoyt Vandenberg
1987
as Officer Bill Miller
1977
as Det. Shoup
1984
1986
as Bailiff
1992
as LMU Coach
2009
as Major General Cosgrove USMC