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: Planet of the Titans Star Trek: Planet of the Titans Star Trek: Planet of the Titans, also known as Star Trek: Planet of Titans, is an unproduced film based on "Star Trek", which reached the script and design phases of pre-production. Following the success of "" in broadcast syndication during the early 1970s and the popularity of the series at science-fiction conventions, Paramount Studios made several attempts to produce a feature film based upon the series. In 1975, "" was proposed by franchise creator Gene Roddenberry but was not picked up by the studio. The following year, pre-production began again on a film with