Season: 1
Original Airdate:April 6, 1967
Writer(s): Harlan Ellison
Director(s):Joseph Pevney
Guest Stars
Joan Collins as Sister Edith Keeler
John Harmon as Rodent
Hal Baylor as Policeman
David L. Ross as Lt. Galloway
John Winston as Transporter Chief Kyle
Bartell LaRue as Voice of the Guardian
Howard Culver as Drunk
Eddie Paskey as Lt. Leslie
Stardate: 3134.0
Synopsis: Kirk and Spock follow McCoy into Earth’s past where they meet Joan Collins.