Mars Callahan
Acting
12
Acting Credits
3
Directed
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 ...
Known For
Filmography
Dog Patrol: Operation Santa Paws
2025
as Agent Matters
Poolhall Junkies
2002
as Johnny
That Thing You Do!
1996
as Ernie the Disc Master Engineer
Clifford
1994
as Brian
ER
1994
as Matt
Kalifornia
1993
as Walter Livesy
Highway to Hell
1991
as State Policeman
I Know My First Name Is Steven
1989
as Victor (Age 14)
The Wonder Years
1988
as Steve
TV 101
1988
as Jack #1
The Children of Times Square
1986
as Brian (as Gregory 'Mars' Martin)
Knots Landing
1979
as Man