"The Devil in the Dark" is a first season episode of the original science fiction television series, Star Trek, first airing on March 9, 1967, and repeating on June 15, 1967. It was written by Gene L. Coon and directed by Joseph Pevney. William Shatner wrote in his memoirs that "The Devil in the Dark" was his favorite original Star Trek episode. He thought it was "exciting, thought-provoking and intelligent, it contained all of the ingredients that made up our very best Star Treks." In the documentary 50 Years of Star Trek, Leonard Nimoy also named "The Devil in the Dark" as an "interesting episode," stating "I thought [it] was a wonderful episode about the fear of the unknown, how we fear and even hate something that we don't know anything about, learn who your enemy is, and it's not, may