All Our Yesterdays (Star Trek: The Original Series)

"**All Our Yesterdays**"
"All Our Yesterdays"
Star Trek: The Original Series episode
Episode no.	Season 3; Episode 23
Directed by	Marvin J. Chomsky
Written by	Jean Lisette Aroeste
Featured music	George Duning
Cinematography by	Al Francis
Production code	078
Original air date	March 14, 1969
Guest appearances
	Ian Wolfe as Mr. Atoz; Mariette Hartley as Zarabeth; Kermit Murdock as The Prosecutor; Johnny Haymer as The Constable; Ed Bakey as The First Fop; Al Cavens as Second Fop; Anna Karen Morrow as Woman; Stan Barrett as Jailer;
Episode chronology
← Previous; "The Savage Curtain"	Next →; "Turnabout Intruder"
	Star Trek: The Original Series season 3
	List of episodes

"All Our Yesterdays" is the twenty-third and penultimate episode of the third season of the American science fiction television series Star Trek. Written by Jean Lisette Aroeste and directed by Marvin J. Chomsky, it was first broadcast March 14, 1969.

In the episode, Captain Kirk, Spock and Dr. McCoy are trapped in two timeframes of another planet's past.

It guest-stars Mariette Hartley as Zarabeth and Ian Wolfe as Mr. Atoz.