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 II: The Wrath of Khan film in the "Star Trek" series, and is often credited with renewing substantial interest in the franchise. In the year 2285, Admiral James T. Kirk oversees a simulator session of Captain Spock's trainees. In the simulation, Lieutenant Saavik commands the starship on a rescue mission to save the crew of the damaged ship "Kobayashi Maru". When the "Enterprise" enters the Klingon Neutral Zone to reach the ship, it is attacked by Klingon cruisers and critically damaged. The simulation is a no-win scenario designed to test the character of Starfleet officers. Later, Dr. McCoy joins Kirk on his birthday; seeing Kirk