The Devil in the Dark

"**The Devil in the Dark**"
"The Devil in the Dark"
Star Trek: The Original Series episode
	Kirk faces the Horta alone
Episode no.	Season 1; Episode 25
Directed by	Joseph Pevney
Written by	Gene L. Coon
Featured music	Alexander Courage
Cinematography by	Jerry Finnerman
Production code	026
Original air date	March 9, 1967
Guest appearances
	Ken Lynch – Chief Engineer Vanderberg; Janos Prohaska – Horta; Barry Russo – Security Chief Giotto; Brad Weston – Appel; Biff Elliot – Schmitter; George E. Allen – Engineer #1; Robert Hoy – Sam; Eddie Paskey – Lt. Leslie; Frank da Vinci – Ensign Vinci; John Cavett – Guard; Ron Veto – Security Guard; Bill Blackburn – Lt. Hadley;
Episode chronology
← Previous; "This Side of Paradise"	Next →; "Errand of Mercy"
	Star Trek: The Original Series season 1
	List of episodes

"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. Coon and directed by Joseph Pevney, the episode first aired on March 9, 1967.^[1]

In this episode, the Enterprise is called to investigate deaths at a planetary mining facility. Spock and Kirk go on an away mission to the facility, leading to them facing off against a deadly subterranean creature.

This episode marks the first appearance of Doctor McCoy's catchphrase, "I'm a doctor, not a ..."

^ DeCandido, Keith R.A. (September 10, 2015). "Star Trek The Original Series Rewatch: "The Devil in the Dark"". Tor.com. Archived from the original on June 23, 2022. Retrieved July 8, 2022.

[krad-1] DeCandido, Keith R.A. (September 10, 2015). "Star Trek The Original Series Rewatch: "The Devil in the Dark"". Tor.com. Archived from the original on June 23, 2022. Retrieved July 8, 2022.

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