We don't have a biography for John Mahon yet. Hang in there, or go ahead and contribute one.
Known For
Credits
Cast Credits
Star Trek: Enterprise (2001)
Guest starring as Fleet Admiral Gardner (Mirror Universe)
- Episode 4x19: In a Mirror, Darkly (2) (Apr 29, 2005)
Angel (1999)
Guest starring as Trevor Lockley
(2 episodes)
- Episode 1x15: The Prodigal (Feb 22, 2000)
- Episode 1x06: Sense & Sensitivity (Nov 9, 1999)
The X-Files (1993)
Guest starring as General Wegman
(2 episodes)
- Episode 6x05: Dreamland (2) (Dec 6, 1998)
- Episode 6x04: Dreamland (1) (Nov 29, 1998)
Baywatch (1989)
Guest starring as Arnold Anderson
- Episode 1x09: The Cretin of the Shallows (Dec 1, 1989) [Co-Star]
Stingray (1986)
Guest starring as Desk Sgt.
- Episode 1x04: Sometimes You Gotta Sing the Blues (Apr 8, 1986) [Co-Star]
Misfits of Science (1985)
Guest starring as Technician
- Episode 1x03: Guess What's Coming to Dinner? (Oct 25, 1985) [Co-Star]
Knight Rider (1982)
Guest starring as Alfie Girdler
- Episode 4x09: Knight Racer (Nov 29, 1985) [Co-Star]
Cagney & Lacey (1982)
Guest starring as DPA Clerk
- Episode 3x05: Baby Broker (Apr 30, 1984) [Co-Star]