
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.

The Changeling
1980 · as Captain DeWitt

The Postman Always Rings Twice
1981 · as Nick Papadakis

Battlestar Galactica
1978 · as Baltar

Anne of the Thousand Days
1969 · as Cromwell

Raid on Rommel
1971 · as Sgt. Maj. Allan MacKenzie

Drum
1976 · as Bernard DeMarigny

Nowhere to Hide
1987 · as General Howard

Barbados Quest
1955 · as Mustachioed Henchman (as John Collicos)

No Contest
1995 · as Senator Donald Wilson

Scorpio
1973 · as McLeod

Doctors' Wives
1971 · as Mort Dellman

The Wrath of God
1972 · as Col. Santilla

King Solomon's Treasure
1979 · as Allan Quatermain

Les ludions
1965

The Hecklers
1975 · as Narrator

Goodbye, Raggedy Ann
1971 · as Paul Jamison

Wuthering Heights
1958 · as Hindley Earnshaw

Mission Galactica: The Cylon Attack
1979 · as Baltar