8. Lieutenant Commander Leonard ‘Bones’ McCoy
DeForest Kelley, who portrays Lieutenant Commander Leonard “Bones” McCoy, the Enterprise‘s chief medical officer and one of Kirk’s confidants, almost didn’t appear in the original Star Trek series. When producer Gene Roddenberry offered him the part of Mr. Spock, Kelley declined.
Although NBC rejected the initial Star Trek pilot, “The Cage,” the network encouraged Roddenberry to try again. With Shatner in place as Kirk and Nimoy signed to play Spock, Kelley agreed to come aboard the series as McCoy.
7. Lieutenant Commander Montgomery ‘Scotty’ Scott
James Doohan, the actor who portrays Lieutenant Commander Montgomery ‘Scotty’ Scott, named the Enterprise‘s engineer after his mother’s father. A master of various accents, Doohan selected a Scottish dialect for Scotty because, in Doohan’s experience, Scotsmen make the best engineers.
Although Scotty and Kirk seem to get along well on camera, Doohan said, “I like Captain Kirk, but I sure don’t like Bill.” He thought Shatner was “insecure” and self-centered and “hogged” the camera.