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Personal Info

Known For

Acting

Known Credits

19

Gender

Female

Birthday

null (NaN years old)

Place of Birth

Studio City, California, U.S.

Also Known As

Gregory Mars Martin

Mars Callahan

Biography

​From Wikipedia, the free encyclopedia.   Mars Callahan (born 1971) is an American actor, director, producer and writer. He is known, among other things, for the movie Poolhall Junkies where he served as director, actor and screenwriter. At the age of eleven Callahan toured with a children's musical group through thirty-seven states. At fifteen he received his first acting role in the television series The Wonder Years. After honing his acting skills in television he tried for the big screen and soon appeared in various films. Inspired by the directors he worked with Callahan decided to try working behind the camera and in 1998 shot his first short film The Red Bag. In a 2007 Hollywood Reporter interview he revealed that he has had serious health problems when doctors found a tumor in his right kidney. He lost his right kidney, his right adrenal gland and has been in and out of a wheelchair for years. Description above from the Wikipedia article Mars Callahan, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Known For

Acting

Poolhall Junkies

2002

Poolhall Junkies

as

Johnny

Dog Patrol

2025

Dog Patrol

as

Agent Matters

Kalifornia

1993

Kalifornia

as

Walter Livesy

Highway to Hell

1991

Highway to Hell

as

State Policeman

The Children of Times Square

1986

The Children of Times Square

as

Brian (as Gregory 'Mars' Martin)

That Thing You Do!

1996

That Thing You Do!

as

Ernie the Disc Master Engineer

Clifford

1994

Clifford

as

Brian

TV 101

TV 101

as

Jack #1

ER

ER

as

Matt

Production

Crew

Directing