Star Trek: The Animated Series

Season 1 Episode 2

Yesteryear

9
Aired Saturday 10:30 AM Sep 15, 1973 on NBC

Trivia

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  • Notes

    • The sentient time portal the Guardian of Forever first appeared in the Star Trek (Original Series) first-season episode "The City on the Edge of Forever". Originally voiced by Bart LaRue, he is played by James Doohan in this episode.