Harlan Jay Ellison (May 27, 1934 – June 28, 2018) was an American writer, known for his prolific and influential work in New Wave speculative fiction and for his outspoken, combative personality. His published works include more than 1,700 short stories, novellas, screenplays, comic book scripts, teleplays, essays, and a wide range of criticism covering literature, film, television, and print media. Some of his best-known works include the 1967 Star Trek episode "The City on the Edge of Forever", considered by some to be the greatest episode of Star Trek ever(he subsequently wrote a book about the experience that includes his original screenplay), his A Boy and His Dog cycle (which was made into a film), and his short stories "I Have No Mouth, and I Must Scream" and "'Repent, Harlequin!' Said the Ticktockman". He was also editor and anthologist for Dangerous Visions (1967) and Again, Dangerous Visions (1972). Ellison won numerous awards, including multiple Hugos, Nebulas, and Edgars.

The Center Seat: 55 Years of Star Trek
Self (archive footage) · (1 episode)
2021

Clark Ashton Smith: The Emperor of Dreams
Himself
2018

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

Scooby-Doo! Mystery Incorporated
Self (voice) · (2 episodes)
2010

Charles Beaumont: The Short Life of Twilight Zone's Magic Man
Self
2010

Dreams with Sharp Teeth
himself
2008
To My Great Chagrin: The Unbelievable Story of Brother Theodore
Himself
2007

40 Years of Star Trek
Self
2006

Legends of the Dark Knight: The History of Batman
Himself
2005

Shadows in the Dark: The Val Lewton Legacy
Self
2005

Impressions of Dune
Self
2003

Psi Factor: Chronicles of the Paranormal
(1 episode)
1996

Phantom 2040
(35 episodes)
1994

Babylon 5
Sparky the Computer (voice) · (1 episode)
1994

Babylon 5
Psi Cop · (1 episode)
1994

Babylon 5
Zooty (voice) · (1 episode)
1994

The Overstreet World of Comic Books
Self
1993

The Simpsons
Harlan Ellison (voice) · (1 episode)
1989

Prisoners of Gravity
Self · (15 episodes)
1989
The Masters of Comic Book Art
Self - Host
1987

Television: The Enchanted Mirror
Self
1981

The Godson
Guy with Barbara and Brunette (uncredited)
1971