REGULAR CAST:

William Shatner as Captain James T. Kirk
Leonard Nimoy as Spock
DeForest Kelley as Dr. Leonard H. McCoy
James Doohan as Chief Engineer Montgomery 'Scotty' Scott
George Takei as Lieutenant Hikaru Sulu
Nichelle Nichols as Lieutenant Uhura
Majel Barrett as Nurse Christine Chapel

GUEST CAST:

Hagan Beggs as Lt. Hansen
Bart Conrad as Krasnovsky
Elisha Cook Jr. as Samuel T. Cogley
Tom Curtis as Corrigan (uncredited)
Win De Lugo as Timothy
Joan Marshall as Lt. Areel Shaw
William Meader as Space Command Representative Lindstrom
Alice Rawlings as Jamie Finney
Percy Rodriguez as Portmaster Commodore Stone
Reginald Lal Singh as Board Officer
Richard Webb as Lt. Cmdr. Ben Finney
Nancy Wong as Personnel Officer/Ensign

PRODUCTION:

Teleplay by: Don M. Mankiewicz and Stephen W. Carabatsos
Story by: Don M. Mankiewicz
Directed by: Marc Daniels