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
Miri (Star Trek: The Original Series) Miri (Star Trek: The Original Series) "Miri" is the eighth episode of the of the American science fiction television series, "". Written by Adrian Spies and directed by Vincent McEveety, it first aired on October 27, 1966. In the episode, the "Enterprise" discovers an exact duplicate of Earth, where the only survivors of a deadly man-made plague are some of the planet's children. The "Enterprise" answers an automated distress call from a planet resembling Earth in every detail. A landing party of Captain Kirk, First Officer Spock, Chief Medical Officer Dr. McCoy, Yeoman Janice Rand and two security personnel find