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
Walter Koenig as Ensign Pavel Andreivich Chekov
Nichelle Nichols as Lieutenant Uhura
Majel Barrett as Nurse Christine Chapel

GUEST CAST:

Mark Lenard as Sarek
James X. Mitchell as Lt. Josephs
Reggie Nalder as Shras
William O'Connell as Thelev
John Wheeler as Gav
Jane Wyatt as Amanda (as Miss Jane Wyatt)

PRODUCTION:

WRITER: D.C. Fontana
DIRECTOR: Joseph Pevney