Mars Callahan More at IMDbPro »

Actor:

• 2000s
• 1990s
• 1980s

1. Spring Break '83 (2009) .... Sargeant Ron
2. What Love Is (2007) .... Ken
3. Poolhall Junkies (2002) .... Johnny
4. Zigs (2001) (as Gregory 'Mars' Martin) .... Clyde
   ... aka Double Down (USA: DVD title)
   
   
5. That Thing You Do! (1996) .... Ernie the Disc Master Engineer
6. "The Office" (1 episode, 1995)
       - Power Playing (1995) TV episode (as Gregory 'Mars' Martin)
7. "ER" .... Matt (1 episode, 1994)
       - 9 1/2 Hours (1994) TV episode (as Gregory 'Mars' Martin) .... Matt
8. Clifford (1994) (as Gregory 'Mars' Martin) .... Brian
9. Kalifornia (1993) (as Gregory Mars Martin) .... Walter Livesy
10. Highway to Hell (1991) (as Gregory Mars Martin) .... State Policeman
11. "CBS Schoolbreak Special" .... Dave (1 episode, 1991)
        - Lies of the Heart (1991) TV episode .... Dave
    
    
12. I Know My First Name Is Steven (1989) (TV) (as Gregory 'Mars' Martin) .... Victor (Age 14)
    ... aka The Missing Years
13. "The Wonder Years" .... Steve (2 episodes, 1988-1989)
        - Birthday Boy (1989) TV episode (as Gregory 'Mars' Martin) .... Steve
        - My Father's Office (1988) TV episode (as Gregory 'Mars' Martin) .... Steve
14. "TV 101" .... Jock #1 (1 episode, 1989)
        - First Love: Part 1 (1989) TV episode (as Gregory 'Mars' Martin) .... Jock #1
15. "Knots Landing" .... Man (1 episode, 1988)
        - The Pick-Up Game (1988) TV episode (as Gregory 'Mars' Martin) .... Man
16. "The Facts of Life" .... Larry (1 episode, 1988)
        - Present Imperfect (1988) TV episode (as Gregory 'Mars' Martin) .... Larry
17. "Cagney & Lacey" (1 episode, 1987)
        - Happiness Is a Warm Gun (1987) TV episode (as Gregory 'Mars' Martin)
18. "Growing Pains" .... Buzzy (1 episode, 1986)
        - Dream Lover (1986) TV episode (as Gregory 'Mars' Martin) .... Buzzy
19. The Children of Times Square (1986) (TV) (as Gregory 'Mars' Martin) .... Brian
    ... aka Street Wise (Australia: video title)
20. "Misfits of Science" .... Zack (1 episode, 1985)
        - Sort of Looking for Gina (1985) TV episode (as Gregory 'Mars' Martin) .... Zack
    

Director:

1. Spring Break '83 (2009)
2. What Love Is (2007)
3. Poolhall Junkies (2002)
4. Zigs (2001) (as Gregory 'Mars' Martin)
   ... aka Double Down (USA: DVD title)
   

Writer:

1. Spring Break '83 (2009) (writer)
2. What Love Is (2007) (writer)
3. Poolhall Junkies (2002) (written by)
4. Zigs (2001) (writer)
   ... aka Double Down (USA: DVD title)
   

Producer:

1. Spring Break '83 (2009) (producer)
2. "Ballbreakers" (2005) TV series (co-executive producer) (unknown episodes)
   

Self:

1. "Bravo Profiles" .... Himself (1 episode, 2001)
       - Rod Steiger (2001) TV episode .... Himself
   

Archive Footage:

1. "The Wonder Years"
       - Broken Hearts and Burgers (1992) TV episode .... Steve