Season 1, Episode 26 Errand of Mercy

A peace-loving race gives Kirk a lesson in warfare when they hesitate to interfere in a skirmish between the Federation and Klingons that threatens their planet. John Colicos reprised his role as the Klingon Kor in the “Star Trek: Deep Space Nine” episodes “Blood Oath,” “Once More Into the Breach” and “The Sword of Kahless.” Ayelborne: John Abbott. Kor: John Colicos. Spock: Leonard Nimoy. Claymare: Peter Brocco. Sulu: George Takei.

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  • Rating: TV-PG
  • Premise: Capt. Kirk, Mr. Spock, Dr. McCoy and the USS Enterprise crew seek out new civilizations in this seminal sci-fi series. The ship's five-year mission may have only lasted three seasons on NBC, but its impact has proved timeless. By the 1970s, its rabid fans-… (more)

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