Series: 'The Original Series'
Episode Title: 'Operation: Annihilate!'
Episode Number: 130
Synopsis: "Kirk's brother's family is devastated by an interplanetary crisis of mass insanity and Spock is attacked by one of the creatures which caused the crisis. McCoy must find a way to kill the aliens without destroying their hosts before the creatures can take over the galaxy."
Original Airdate: April 13, 1967
Written By: Steven W. Carabatsos
Directed By: Alexander Courage
- Joan Swift as Aurelan
- Maurishka as Yeoman Zahra
- Majel Barrett Roddenberry as Nurse Christine Chapel
- Craig Hundley as Peter Kirk
- Fred Carson as First Denevan
- Jerry Catron as Second Denevan
- Dave Armstrong as Kartan
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