Question: who played the green girl in star trek
Answer: Yvonne Joyce Craig ( May 16 , 1937 -- August 17 , 2015 ) was an American ballet dancer and actress best known for her role as Batgirl in the 1960s television series Batman and as the green - skinned Orion slave girl Marta in the Star Trek episode `` Whom Gods Destroy '' ( 1969 ) .