Mars Callahan
Studio City, California, U.S.
Films
2025
Dog Patrol
Agent Matters
2002
Poolhall Junkies
Johnny
1996
That Thing You Do!
Ernie the Disc Master Engineer
1994
Clifford
Brian
1993
Kalifornia
Walter Livesy
1991
L'Autoroute de l'Enfer
State Policeman
1986
The Children of Times Square
Brian (as Gregory 'Mars' Martin)
Séries
1994
Urgences
Matt
1989
I Know My First Name Is Steven
Victor (Age 14)
1988
TV 101
Jack #1
1988
1979
Côte Ouest
Man