Gregory Paul Martin

2020s

1. 2020
   

   Lilly's Light: The Movie

   Professor Crabbe

2010s

1. 2018

   Nothing Is Truer than Truth

   (voice)

2. 2010

   Lilly's Light

   Professor Crabbe

1990s

1. 1995
   

   A Walk in the Clouds

   Armistead Knox

   61
2. 

   Sliders

   Gareth Carr · 1 episode

   75
3. 1994
   

   Ellen

   Roger · 1 episode

   61
4. 

   Babylon 5

   Colonel Ari Ben Zayn · 1 episode

   83
5. 1993
   

   seaQuest DSV

   Marcus Rawlings · 1 episode

   68
6. 1992
   

   Mad About You

   Andrew · 1 episode

   68
7. 

   Memoirs of an Invisible Man

   Richard

   51

1980s

1. 1989

   Ring Raiders

   TV

2. 1986
   

   The Real Ghostbusters

   Ghostmaster (voice), Ghostmaster / Motorists (voice) · 1 episode

   76
3. 1984

   Ellis Island

   Marco Santorelli · 3 episodes

4. 

   Murder, She Wrote

   Danny Briggs · 1 episode

   74