Leonard McCoy payment for his appearance. In the "" episode "", McCoy mentions he has a daughter, Joanna. Although Chekov's friend Irina in the original series episode "The Way to Eden" was originally written as McCoy's daughter, it was changed before the episode was shot. In the 2009 "Star Trek" film, which takes place in an "alternate, parallel" reality, McCoy and Kirk become friends at Starfleet Academy, which McCoy joins after a divorce that he says "left [him] nothing but [his] bones." This line, improvised by Urban, explains how McCoy earned the nickname "Bones". McCoy later helps get Kirk posted aboard the
Leonard McCoy Southern Kelley was a real-life demonstration of the message Roddenberry hoped to convey through "Star Trek". For the 2009 "Star Trek" film, writers Roberto Orci and Alex Kurtzman saw McCoy as an "arbiter" in Kirk and Spock's relationship. While Spock represented "extreme logic, extreme science" and Kirk symbolized "extreme emotion and intuition", McCoy's role as "a very colorful doctor, essentially a very humanistic scientist" represented the "two extremes that often served as the glue that held the trio together." They chose to reveal that McCoy befriended Kirk first, explaining the "bias" in their friendship and why he would often be