Los Simpson
1989
Harlan Ellison (voice)
Scooby-Doo! Misterios, S. A.
2010
Self (voice)
Babylon 5
1994
Sparky the Computer (voice)
Psi Cop
Zooty (voice)
Psi Factor: Chronicles of the Paranormal
1996
Shadows in the Dark: The Val Lewton Legacy
2005
Self
Dreams with Sharp Teeth
2008
Legends of the Dark Knight: The History of Batman
The Godson
1971
Guy with Barbara and Brunette (uncredited)
40 Years of Star Trek
2006
Charles Beaumont: The Short Life of Twilight Zone's Magic Man
Pencils Down! The 100 Days of the Writers Guild Strike
2014
The Masters of Comic Book Art
1987
Self - Host
The Overstreet World of Comic Books
1993
De droomproducenten
1984
Television: The Enchanted Mirror
1981
Impressions of Dune
2003
Clark Ashton Smith: The Emperor of Dreams
2018
Television: The Ultimate Drug
Self / Author
El Fantasma 2040
The Center Seat: 55 Years of Star Trek
2021
Self (archive footage)
Prisoners of Gravity
