Mars Callahan

Mars Callahan Headshot

Actor • Director • Producer • Writer

Birth Place: Los Angeles, California

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Mars Callahan is an American actor, director, writer, and producer who has appeared in his role in "ER" as Matt. Callahan was nominated for a Primetime Emmy Award in 2024 for "The 96th Annual Academy Awards."

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POOLHALL JUNKIES, Gregory 'Mars' Callahan, 2003POOLHALL JUNKIES, Michael Rosenbaum, Gregory 'Mars' Callahan, 2003POOLHALL JUNKIES, Rick Schroder, Gregory 'Mars' Callahan, 2003POOLHALL JUNKIES, Gregory 'Mars' Callahan, 2003POOLHALL JUNKIES, Michael Rosenbaum, Gregory 'Mars' Callahan, 2003