Joan Johnson
Joan Johnson is an actress and contortionist who appeared as one of two female Human Augments in the  first season episode . She received no credit for this appearance but is mentioned by the  and other sources. Her scenes were filmed on Thursday  at Desilu Stage 10.

Prior to her appearance on Star Trek, Johnson appeared in an episode of Samuel A. Peeples series Frontier Circus (1961), with Joe Garcio.

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Performers
TOS performers