Leonard McCoy is confronted with the unusual silicon-based Horta alien in "The Devil in the Dark" (1967), saying, "I'm a doctor, not a bricklayer." The line was used in "Terra Nova". Kelley himself parodied the phrase for a "Trivial Pursuit" commercial, in which the question is asked "How many chambers does a human heart have?" Kelley appears on screen and replies "How should I know? I'm an actor, not a doctor!". Leonard McCoy Dr. Leonard H. "Bones" McCoy is a character in the American science fiction franchise "Star Trek". First portrayed by DeForest Kelley in the , McCoy also appears in the
Star Trek: The Motion Picture look of inscrutability as Mr. Spock [...] DeForest Kelley as Dr. McCoy is as feisty as ever, and James Doohan as Scotty still splutters about his engineering woes. At a basic level, their exchanges are those of an odd assortment of grumpy, middle-aged men bickering about office politics. They are a relief from the stars, and a delight." Godfrey's only concern was that the reunion of the old cast threatened to make casual viewers who had never seen "Star Trek" feel like uninvited guests. Martin considered the characters more likable than those in comparable science fiction films. Conversely, Arnold felt