Errand of Mercy

This Story: Season 1 Episode 26 (production code 1.27)
TOS Overall: Story 26, Episode 27
Trek Overall: Story 26, Episode 27
Airdate: 23 Mar 1967
Written by Gene L. Coon
Directed by John Newland

Notes

• The first episode ever with Klingons.
• John Colicos plays the first Klingon commander, “Kor”.  He would play this character in three episodes of Star Trek: Deep Space Nine – “Blood Oath“, “The Sword of Kahless“, & “Once More Unto the Breach“.
• The character of Kor also appears in the Animated Series episode “The Time Trap“, but is not voiced by John Colicos. Kor was voiced by James Doohan in that episode.
• The events of this episode are referenced again in the future as the “Organian Peace Treaty”.
• This episode has the Organians say that in the future, the Federation and the Klingon Empire will become friends.  This foretells the events in Star Trek: The Next Generation.

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