Filmography

The Simpsons
1989 · Acting

Star Trek
1966 · Writer

Babylon 5
1994 · Writer, Acting

The Alfred Hitchcock Hour
1962 · Writer

Scooby-Doo! Mystery Incorporated
2010 · Acting

Voyage to the Bottom of the Sea
1964 · Writer

The Twilight Zone
1985 · Writer

Tales from the Darkside
1984 · Writer

Burke's Law
1963 · Writer

Psi Factor: Chronicles of the Paranormal
1996 · Acting

The Outer Limits
1963 · Writer

The Man from U.N.C.L.E.
1964 · Writer

Prisoners of Gravity
1989 · Acting

The Hunger
1997 · Writer

Ghost Story
1972 · Writer

Phantom 2040
1994 · Acting

Tales to Keep You Awake
1966 · Writer

Silver Surfer
1998 · Writer

The Center Seat: 55 Years of Star Trek
2021 · Acting

The Starlost
1973 · Writer

Masters of Science Fiction
2007 · Writer

Cadillacs and Dinosaurs
1993 · Writer

A Boy and His Dog
1975 · Writer

The Oscar
1966 · Writer

Legends of the Dark Knight: The History of Batman
2005 · Acting

Shadows in the Dark: The Val Lewton Legacy
2005 · Acting

The Overstreet World of Comic Books
1993 · Acting

Dreams with Sharp Teeth
2008 · Acting

40 Years of Star Trek
2006 · Acting

De droomproducenten
1984 · Acting
- No Poster
To My Great Chagrin: The Unbelievable Story of Brother Theodore
2007 · Acting

The Starlost: The Beginning
1980 · Writer

The Godson
1971 · Acting

Impressions of Dune
2003 · Acting

The Masters of Comic Book Art
1987 · Acting

Pencils Down! The 100 Days of the Writers Guild Strike
2014 · Acting

Charles Beaumont: The Short Life of Twilight Zone's Magic Man
2010 · Acting
- No Poster
Since '45
1979 · Acting
- No Poster
The Starlost: Deception
1980 · Writer

Television: The Ultimate Drug
Acting

Clark Ashton Smith: The Emperor of Dreams
2018 · Acting

Television: The Enchanted Mirror
1981 · Acting
