Garrison True
Garrison True  appeared as the  1st Crewman Guard in the  first season episode . Despite having dialogue, he  received no credit for his appearance and filmed his scenes on Friday  at Desilu Stage 9.

He began his Hollywood career with appearances in Petticoat Junction in 1964 as Henry Brewster, and had scattered appearances in various other television series until the mid-1990s, including a number of episodes of General Hospital in 1981 as Hal Tomlinson. He has also worked as a casting director and as a dialogue coach in a number of television mini-series, made-for-television films, episodic television, and theatrical films.

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Performers
TOS performers