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 a "little dismissive" of Spock. Urban said the script was "very faithful" to the original character, including the "great compassion for humanity and that sense of irascibility" with which Kelley imbued the character. New Zealand-born Urban trained with a dialect coach to create McCoy's accent and reprised the role in its sequels "Star Trek Into Darkness" and "Star Trek Beyond".