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
Star Trek expanded universe Star Trek expanded universe The "Star Trek" expanded universe is an unofficial, fan-created term to describe an extrapolation of events which occur in the "Star Trek" Universe outside the scope of the television series and feature films. Information from the "Star Trek" "Expanded Universe" typically fills "holes" in the "Star Trek" story and timeline, with explanations of events which have never been adequately explained through live action productions. The term was first used in 1966 by writer D.C. Fontana to describe information put forth in the backstory of Doctor Leonard McCoy. Although original "Star Trek" fiction (for adult audiences) dates