Deze tweede pilot introduceerde de hoofdpersonages Kapitein Kirk (William Shatner), hoofdmonteur en Luitenant Scott (James Doohan) en Luitenant Sulu (George Takei). ###>Commander Scott (James Doohan) and Lt. Sulu (George Takei), who served as a physicist on the ship in the second pilot but subsequently became a helmsman throughout the rest of the series.