Errand of Mercy

Regulars

 * James T. Kirk (played by William Shatner)
 * Spock (played by Leonard Nimoy)
 * Leonard H. McCoy (played by DeForest Kelley)
 * Montgomery Scott (played by James Doohan)
 * Hikaru Sulu (played by George Takei)
 * Nyota Uhura (played by Nichelle Nichols)

Others

 * Ayelborne
 * Claymare
 * Kor
 * Edward Leslie
 * Trefayne

Starships

 * USS Enterprise (NCC-1701) - Constitution class

Locations

 * Organia

Species

 * Human
 * Klingon
 * Organian
 * Vulcan

States and Organisations

 * Klingon Empire
 * Starfleet
 * United Federation of Planets