Acting credits
12
Active
Consistent number of acting credits.

Acting
These indicators come from TMDB. They are relative signals, not review ratings.
Acting credits
12
Active
Consistent number of acting credits.
TMDB popularity
0.3
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
TMDB ID: 91389
IMDb ID: nm0552358
Known for: Acting
Place of birth: Studio City, California, U.S.
Adult content flag: No
Career span: 1979 - 2025
Years active: 47
Average TMDB rating: 6.55
Wikidata: Q1902549
Also known as
Gregory Mars Martin
Other jobs
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.
Movie credits linked with Mars Callahan.
as Agent Matters
Writer
as Johnny
Director
as Ernie the Disc Master Engineer
as Brian
as Walter Livesy
as State Policeman
as Brian (as Gregory 'Mars' Martin)
Series credits linked with Mars Callahan.