Star Trek: Tomorrow Is Yesterday

"Tomorrow Is Yesterday" is the eighteenth episode of season one of the original science fiction/adventure series Star Trek, and is the twenty-first episode produced in the series overall. It was directed by Michael O'Herlihy with a script written by D.C. Fontana. It first aired on NBC on January 26th, 1967. In addition to the regular cast and recurring stars, this episode features guest appearances by actors Roger Perry as Captain John Christopher, Hal Lynch as an Air Police sergeant, Richard Merrifield as Technician Webb and Ed Peck as Colonel Fellini.

Trivia

 * Technician Webb is the first character seen in this episode. He is also the first character with speaking lines.

What else have they done?

 * This is the first, and to date, only known acting work for Sherri Townsend, who plays a crew woman in this episode.

Bloopers

 * Mister Spock's ears look noticeably fake in the opening scene from this episode.