|Born||in Studio City, Los Angeles, California, USA|
|Birth Name||Gregory Mars Martin|
|Height||6' 6" (1.98 m)|
Mini Bio (1)
Mars Callahan was born in 1971 in Studio City, Los Angeles, California, USA as Gregory Mars Martin. He is an actor and director, known for Poolhall Junkies (2002), Kalifornia (1993) and Spring Break '83.