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
The Star Trek Encyclopedia "Encyclopedia" mostly covers material from the "Star Trek" television series and the "Star Trek" motion pictures, which, according to Gene Roddenberry, are the extent of the "Star Trek" canon. It does include some completely original information. Given that this information is part of an officially licensed publication but not actually included in any "Star Trek" movie or television episode, its canonicity is disputed. Some entries in the "Encyclopedia" contain behind-the-scenes information, presented in italicized text. Unlike the "", the "Encyclopedia" makes no detailed speculations about "Star Trek" technology. The "Encyclopedia" was inspired by a previous book by the same writing