The three main characters were Kirk, Spock, and McCoy, with writers often playing the different personalities off each other: Kirk was passionate and often aggressive, but with a sly sense of humor; Spock was coolly logical; and McCoy was sardonic, emotional, and illogical, but always compassionate.
Cele trei personaje principale erau Kirk, Spock și McCoy, având personalități contrastante: Kirk era pasional și deseori agresiv, dar cu un simț al umorului inteligent, Spock era rece și rațional, iar McCoy era sarcastic, dar întotdeauna plin de compasiune.