highest rated
- Since '45
-
Pencils Down! The 100 Days of the Writers Guild Strike
-
The Terminator
-
Legends of the Dark Knight: The History of Batman
-
Dreams with Sharp Teeth
-
Charles Beaumont: The Short Life of Twilight Zone's Magic Man
-
Shadows in the Dark: The Val Lewton Legacy
- To My Great Chagrin: The Unbelievable Story of Brother Theodore
- The Masters of Comic Book Art
-
A Boy and His Dog
acting
- Television: The Ultimate Drug → Self / Author
- The Center Seat: 55 Years of Star Trek (TV) → Self (archive footage)
- Clark Ashton Smith: The Emperor of Dreams → Self
- Pencils Down! The 100 Days of the Writers Guild Strike → Self
- Scooby-Doo! Mystery Incorporated (TV) → Self (voice)
- Charles Beaumont: The Short Life of Twilight Zone's Magic Man → Self
- Dreams with Sharp Teeth → Self
- To My Great Chagrin: The Unbelievable Story of Brother Theodore → Self
- 40 Years of Star Trek → Self
- Legends of the Dark Knight: The History of Batman → Self
- Shadows in the Dark: The Val Lewton Legacy → Self
- Impressions of Dune → Self
- Psi Factor: Chronicles of the Paranormal (TV)
- Babylon 5 (TV) → Sparky the Computer (voice)
- Babylon 5 (TV) → Psi Cop
- Babylon 5 (TV) → Zooty (voice)
- Phantom 2040 (TV)
- The Overstreet World of Comic Books → Self
- The Simpsons (TV) → Harlan Ellison (voice)
- Prisoners of Gravity (TV) → Self
- The Masters of Comic Book Art → Self - Host
- Television: The Enchanted Mirror → Self
- Since '45 → Self - In new expanded version
- The Godson → Guy with Barbara and Brunette (uncredited)