Yvonne Craig

Actor (Marta) — The Original Series

American actor and former ballet dancer (1937–2015), known as Batgirl in the 1960s Batman series, who played the unstable Orion inmate Marta in Whom Gods Destroy.

Yvonne Craig was an American actor, born in 1937, who trained as a ballet dancer before moving into film and television. She is best remembered as Barbara Gordon, the Batgirl of the final season of the 1960s Batman series.
In Star Trek she guest stars in the third-season episode Whom Gods Destroy, first shown in 1969. She plays Marta, a green-skinned Orion woman confined in the asylum on Elba II, who dances for the inmates, claims other people's poetry as her own and becomes the consort of the mad former fleet captain Garth of Izar.
Craig also appeared in two Elvis Presley films and many television series of the 1960s. She died in 2015.