John Patrick Mahon (February 3, 1938 - May 3, 2020) was an American actor best known for Armageddon (1998), L.A. Confidential (1997), and Zodiac (2007).
He had two children.
Mahon died in 2020 at the age of 82 from natural causes.
Filmography
Film Roles
- 1973: The Exorcist as Language Lab Director
- 1976: Collision Course Truman Vs Mac Arthur as Gen. Hoyt Vandenberg
- 1977: Eleanor And Franklin The White House Years as Veteran
- 1977: A Killing Affair as Det. Shoup
- 1978: Someones Watching Me as Frimsin
- 1986: Betrayed By Innocence as Bailiff
- 1987: Six Against The Rock as Officer Bill Miller
- 1988: The Couch Trip as Police Captain
- 1988: Shakedown On The Sunset Strip as Deputy Chief Evans
- 1990: Bad Influence as Dr. Fielding
- 1991: The People Under the Stairs as Police Sergeant
- 1992: Murder Without Motive The Edmund Perry Story as Insp. Hedges
- 1992: One False Move as Chief Jenkins
- 1992: Final Shot The Hank Gathers Story as LMU Coach
- 1993: Lifepod as Earth Corp Ship Commander
- 1994: Natural Selection as Coach Dickler
- 1994: Roswell as Red Hat Vet
- 1995: The American President as Chairman of the Joint Chiefs
- 1997: L.A. Confidential as Police Chief
- 1998: Armageddon as Karl
- 1999: Austin Powers: The Spy Who Shagged Me as NATO Colonel
- 2001: Just Ask My Children as Judge Ferguson
- 2007: Zodiac as Riverside Captain
- 2009: A Call To Arms as Major Gen. Cosgrove USMC
Television Roles
- 1976: The Blue Knight as SWAT Commander
- 1976: Police Woman as Fireman
- 1976-1977: The Rockford Files as Victor Sherman/Lt. Hayes/Todd Morris (3 episodes)
- 1977: Police Story as Det. Leo Luna
- 1977-1978: Kojak as I.A.D. Man/Lawton (2 episodes)
- 1983: Manimal as Man
- 1984: Automan as The Policeman
- 1984: Cagney & Lacey as DPA Clerk
- 1984: Steambath as The Fan
- 1985: Cover Up as Limo Driver
- 1985: Crazy Like a Fox as Lt. Doyle
- 1985: St. Elsewhere as Police Officer
- 1985: T.J. Hooker as Mr. Zewecki
- 1985: Simon & Simon as Minister
- 1985: Misfits of Science as Technician
- 1985: Knight Rider as Alfie Girdler
- 1985: MacGyver as Vendor
- 1985-1986: Hill Street Blues as Mario/Det. McConnell (2 episodes)
- 1986: Stingray as Desk Sergeant
- 1986: The New Mike Hammer as Sgt. Cramer
- 1987: Hooperman as Chapell
- 1989: Hunter as I.A.D. Officer #2
- 1989: Generations as Capt. Parker
- 1989: Baywatch as Arnold Anderson
- 1990: Dallas as Capt. Holgar
- 1990: Jake and the Fatman as Jameson
- 1990: Equal Justice as Det. Stassen
- 1990: Knots Landing as Investigator/Superior/Surveillant (3 episodes)
- 1991: Flesh N Blood as Holly's Dad
- 1992: Homefront as Bus Driver
- 1992: Sinatra as Mr. Cleaves
- 1993: Space Rangers as Amb. Hardcastle
- 1993: Cutters as Dave
- 1997: Profiler as Det. Spitz
- 1998: Brooklyn South as Gene Donovan
- 1998: The Pretender as Eugene Clark
- 1998: Frasier as Uncle Walt Crane
- 1998: Diagnosis: Murder as Fire Chief
- 1998: The X-Files as Gen. Wegman
- 1999: Strange World as Agent Milton
- 1999: Just Shoot Me! as Alan Drake
- 1999-2000: Angel as Trevor Lockley (2 episodes)
- 2000: Bull as Paul Catteo
- 2000: Touched by an Angel as Wally
- 2000: JAG as Adm. Rockerly
- 2001: Thats Life as Leo
- 2001: The Division as Barry Constansas
- 2004: Cold Case as Colonel
- 2005: Zoey 101 as Mr. Bradford
- 2005: Star Trek: Enterprise as Mirror Adm. Gardner
- 2006-2007: Studio 60 on the Sunset Strip as George (7 episodes)
Video Game Roles
- 1995: I. M. Meen as Gnorris
Shorts
- 2018: Do Not Go Gentle as Clarence
