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).
as Adm. Gardner (Mirror)
as Major General Cosgrove USMC
as Riverside Captain
as Mr. Bradford(1 ep)
as Admiral Gardner(1 ep)
as Police Captain(1 ep)
as Judge Ferguson
as Barry Constansas(1 ep)
as Trevor Lockley(2 eps)
as NATO Colonel
as Karl
as Police Chief
as Col. Alan Drake(1 ep)
as Det. Spitz(1 ep)
as Eugene Clark(1 ep)
as Bert Shaw(1 ep)
as Chairman of the Joint Chiefs
as Admiral Rockerly(1 ep)
as Wally(1 ep)
as Red Hat Vet
as Fire Chief(1 ep)
as Walt Crane(1 ep)
as General Wegman(2 eps)
as Chief Jenkins
as LMU Coach
as Police Sergeant
as Holly's Dad(1 ep)
as Arnold Anderson(1 ep)
as Police Captain
as Jameson(1 ep)
as Officer Bill Miller
as Bailiff
as Technician(1 ep)
as Vendor(1 ep)
as Lt. Doyle(1 ep)
as Zach(1 ep)
as IAD Officer #2(1 ep)
as Man(1 ep)
as Police Officer(1 ep)
as Alfie Girdler(1 ep)
as Mr. Zewecki(1 ep)
as Detective McConnell(1 ep)
as Mario(1 ep)
as Surveillant(1 ep)
as Superior(1 ep)
as Investigator(1 ep)
as Frimsin
as Det. Shoup
as Gen. Hoyt Vandenberg
as Todd Morris(1 ep)
as Fireman(1 ep)
as Victor Sherman(1 ep)
as Language Lab Director
as Lawton(1 ep)
as I. A. D. Man(1 ep)