Michael C. Mahon

Tomb of Terror

(Detective Greenberg)

Malcolm X

(Prisoner)

High School Possession

(Coach Burdette)

Shattered Mind

(Jack)

Get a Job

(Braddock)

Christmas Twister

(Doug)

Ominous

(Rachel's Doctor)

The Flight Before Christmas

(Santa Claus)

Wall Street

(Trader - Office)

Oblivion 2: Backlash

(Sidekick)

A Tale of Two Coreys

(Teacher)

Risk

(Security Guard)

Dark Angel: The Ascent

(Detective Greenberg)

Josh Kirby... Time Warrior: Last Battle for the Universe

(Donald Kirby (as Michael Mahon))

Sleepaway Camp

(Hal)

Fatal Affair

(Driver)

Gridiron Gang

(Field Coach)

Gangster Squad

(Citz Hall Reporter)

Zits

(FBI Agent in Car)

Chameleons

(Michael)

How I Met Your Mother

(Grumpy Man)

Diagnosis: Murder

(Barry McCarthy)

One West Waikiki

Law & Order

(Will Carter)

Law & Order

(Policeman #2)

Scandal

(Billy Joe Lee)

The Orville

(Altox)

Lois & Clark: The New Adventures of Superman

(Brian)

The King of Queens

(Mike)

The King of Queens

(Mr. Rogers)

Beyond Belief: Fact or Fiction

(Mr. Baker (segment "Precious"))

ER

(Joe)

Baywatch Nights

(Clean Cut)

Private Practice

(Detective Smith)