26th episode of the 1st season of Star Trek: The Original Series
"Errand of Mercy"
Star Trek: The Original Series episode
Episode no.
Season 1 Episode 26
Directed by
John Newland
Written by
Gene L. Coon
Featured music
Alexander Courage
Cinematography by
Jerry Finnerman
Production code
026
Original air date
March 23, 1967 (1967-03-23)
Guest appearances
John Colicos - Commander Kor
John Abbott - Ayelborne
David Hillary Hughes - Trefayne
Peter Brocco - Claymare
Victor Lundin - Lieutenant
George Sawaya - Second Soldier
Walt Davis - Klingon Soldier
Bobby Bass - Klingon Guard
Eddie Paskey - Lt. Leslie
Gary Combs - Klingon Guard
Episode chronology
← Previous "The Devil in the Dark"
Next → "The Alternative Factor"
Star Trek: The Original Series season 1
List of episodes
"Errand of Mercy" is the twenty-sixth episode of the first season of the American science fiction television series Star Trek. Written by Gene L. Coon and directed by John Newland, it was first broadcast on March 23, 1967. It was the first episode in which the Klingons appeared.
In the episode, with a war with the Klingons declared, Captain Kirk and his First Officer, Mr. Spock, attempt to sway the incomprehensibly placid population of a planet near the Klingon border to resist an invading military occupation.
The Klingon governor, Kor (played by John Colicos), would return in the Star Trek: The Animated Series episode "The Time Trap" voiced by James Doohan. He would return again decades later in the Star Trek: Deep Space Nine episodes "Blood Oath", "The Sword of Kahless" and "Once More Unto the Breach". In "The Sword of Kahless", Worf mentions Kor's encounter with Kirk.
"ErrandofMercy" is the twenty-sixth episode of the first season of the American science fiction television series Star Trek. Written by Gene L. Coon...
Star Trek franchise, Commander Kor in the Original Series episode "ErrandofMercy" (1967). Colicos worked with Gene Roddenberry designing the look the...
pp. 201–202. ISBN 0-671-00974-5. Handlen, Zack (April 17, 2009). ""ErrandOfMercy" / "The Alternative Factor"". The A.V. Club. Retrieved March 2, 2010...
and television actor. He played Anselm in The Adventures of Robin Hood episode "ErrandofMercy" (1956). Non-Stop New York (1937) - Ship Steward (uncredited)...
constructed for this episode, and reused in the first-season episode "ErrandofMercy" and the second-season episode "Catspaw". Marplon's absorption booth...
in the Star Trek episode "ErrandofMercy", which established the uneasy treaty of peace between the United Federation of Planets and the Klingon Empire...
An ErrandofMercy A Crepe Bonnet Brethren of the Sacred Fish When Darkness Came The Op of New York The Wild Man Willie Little Dorrit In The Nick of Time...
launch of the original Star Trek television series in 1966. Its success led to numerous films, novels, comics, and spinoff series. A major motif of the franchise...
"Charlie X" is the second episode of the first season of the American science fiction television series Star Trek. Written by Dorothy C. Fontana from a...
that their powers were not effective over any human on an errandofmercy. About the size of a small child when visible, they fished at sea and herded...
Beat". Jerry Haendiges Vintage Radio Logs. Retrieved June 1, 2016. "ErrandofMercy". RadioGOLDINdex. Archived from the original on June 24, 2016. Retrieved...
on the planet Organia, prior to the establishment of the Organian Peace Treaty in "ErrandofMercy". To restore the timeline, he travels with Kirk back...
suggestive of Asian people and possessed physical abilities similar to humans (in fact, Coon's only physical description of them in his "ErrandofMercy" script...
taking him to town on an errandofmercy. The narrator singer describes examining the wreckage and discovering evidence of an extramarital affair between...
(comics) The Deaths of Ian Stone Demona The Doctor Doomguy Claudia Donovan (Warehouse 13) Drusilla (Buffy the Vampire Slayer) ErrandofMercy Eru Ilúvatar Eve...
featured the return of John Colicos as Kor. Colicos had first appeared as Kor in the Star Trek: The Original Series episode "ErrandofMercy", and had previously...
of the Penguin's henchmen, and as Chief Standing Pat in separate episodes. In 1967, he appeared in the Star Trek: The Original Series episode "Errand...
Australia," was "distinguished by her height of five feet [and] weigh[t of] 92 pounds." On the other hand, Joe Hyams of the Citizen-News, while likewise documenting...
"The Devil in the Dark" is the twenty-fifth episode of the first season of the American science fiction television series Star Trek. Written by Gene L...
Hanna-Barbera media, Nancy in Shazzan, Penelope Pitstop, Princess from Battle of the Planets, and Josie in Josie and the Pussycats. On radio, she was the title...
Global Information