Michael C. Mahon

Diagnosis: Murder

as Barry McCarthy

Episodes: 2

First Aired: Oct 29, 1993

ER

as Joe

Episodes: 2

First Aired: Sep 19, 1994

How I Met Your Mother

as Grumpy Man

Episodes: 1

First Aired: Sep 19, 2005

Law & Order

as Will Carter

Episodes: 1

First Aired: Sep 13, 1990

Law & Order

as Policeman #2

Episodes: 1

First Aired: Sep 13, 1990

Scandal

as Billy Joe Lee

Episodes: 1

First Aired: Apr 05, 2012

The Orville

as Altox

Episodes: 1

First Aired: Sep 10, 2017

Lois & Clark: The New Adventures of Superman

as Brian

Episodes: 1

First Aired: Sep 12, 1993

The King of Queens

as Mike

Episodes: 1

First Aired: Sep 21, 1998

The King of Queens

as Mr. Rogers

Episodes: 1

First Aired: Sep 21, 1998

Beyond Belief: Fact or Fiction

as Mr. Baker (segment "Precious")

Episodes: 1

First Aired: May 25, 1997

Baywatch Nights

as Clean Cut

Episodes: 1

First Aired: Sep 30, 1995

Private Practice

as Detective Smith

Episodes: 1

First Aired: Sep 26, 2007