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 Original Series notable films, played Cyrano de Bergerac on Broadway, and even turned down the part of Dr. Kildare. However, when roles became sparse he took the regular job after Jeffrey Hunter's contract was not renewed. After the episodes aired, many performers found themselves typecast because of their defining roles in the show. ("Star Trek: The Next Generation" actor Michael Dorn stated in 1991, however: "If what happened to the first cast is called being typecast, then I want to be typecast. Of course, they didn't get the jobs after "Trek". But they are making their sixth movie. Name me someone else