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: The Role Playing Game provided for principal characters in the "Star Trek" TV series (Kirk, Spock, Dr. McCoy, Scotty, etc.), allowing players to play those roles instead of generating their own characters. The first edition of the game included a tactical starship combat game, which would later be redeveloped into the Starship Tactical Combat Simulator. The game's basic rule system provided a simple system for moderating space battles, in which each player assumed a role in the battle, typically by manning a station on the ship's bridge. The Captain determined the strategy, the Engineer was responsible for power management and allocation to different systems