As of August 2026, John Colicos is best known for Star Trek: Deep Space Nine and Mannix. Find every show and movie John Colicos has starred in — and where to watch them — below.
John Colicos

John Colicos

Actor Born 1928 Toronto, Ontario, Canada 7 TV Shows 8 Movies

John Colicos (December 10, 1928 – March 6, 2000) was a celebrated Canadian actor known for his extensive work on stage and screen in Canada, the United States, and the United Kingdom. He began his career in Canadian theater and became the youngest actor to play King Lear at London’s Old Vic. His authoritative presence led to many memorable villain roles in science fiction and drama.

Colicos is especially famous for his portrayal of Commander Kor, the first Klingon ever depicted in Star Trek’s Original Series ("Errand of Mercy," 1967), a role he later reprised in Star Trek: Deep Space Nine. He also played Count Baltar in the original Battlestar Galactica series and gave voice to the villain Apocalypse in the 1990s X-Men animated series. Beyond science fiction, Colicos appeared in numerous films and television programs, including The Changeling, Anne of the Thousand Days, and General Hospital.

He was recognized for his commanding voice, dramatic stage work, and pioneering contributions to popular culture. Colicos was married to Mona McHenry and had two sons. He died in Toronto in 2000 at the age of 71.

John Colicos has built a filmography of 15 credits over a career spanning from 1954 to 1993.

John Colicos's most notable role to date came in X-Men (1992), where he played Apocalypse (voice). He also appeared in Star Trek: Deep Space Nine (1993) as Kor. Most recently appeared in The Changeling (1980) as Captain DeWitt.

Fans wanting to catch up on John Colicos's work can find exactly where his shows and movies are streaming below — and TV Butler Pro makes it effortless to keep track of them all. Just search the title, and Butler finds it instantly, tells you which service has it, and remembers what you've already watched.

or
TV Butler Pro app
🎩 TV Butler Pro — Free to Use
Search or tap a mood. Butler finds it, tracks it, remembers it — all for free.

📺 John Colicos's TV Shows

Star Trek: Deep Space Nine
Kor
1993
Mannix
Dr. Myles Considine
1967
X-Men
Apocalypse (voice)
1992
Battlestar Galactica
Count Baltar
1978
War of the Worlds
Quinn
1988
The Magician
Paul Gunther
1973
The Wonderful World of Disney
Moroni
1954

🎬 John Colicos's Movies

The Changeling
Captain DeWitt
1980
The Postman Always Rings Twice
Nick Papadakis
1981
Battlestar Galactica
Baltar
1978
Anne of the Thousand Days
Cromwell
1969
Drum
Bernard DeMarigny
1976
Scorpio
McLeod
1973
Mission Galactica: The Cylon Attack
Baltar
1979
Raid on Rommel
Sgt. Maj. Allan MacKenzie
1971

Never Miss a Show Starring John Colicos

TV Butler Pro™ tracks everything you watch, finds where to stream any show or movie — free to use, opens right in your browser.

🎩 Try TV Butler Pro™ Free