Series: Star Trek: The Original Series
Season 2, Episode 20
Original Air Date: February 9, 1968
|via Utterly Star Trek Review
The Enterprise crew discovers highly advanced beings on what was presumed to be an uninhabited planet. Or rather, they find the long-preserved consciousness of those entities. Kirk, Spock and special guest Dr. Ann Mulhall all willingly submit to telepathic possession so their new friends can build robots to house their minds for the next thousand years. But even superior beings are morally corruptible and Henoch, the one possessing Spock, hatches a murderous plan to stay in his organic Vulcan vessel forever.
|via The Flaming Nose
Muldaur spent more than a quarter-century in television but her biggest role didn't come until after Trek. She played the ruthless Rosalind Shays on L.A. Law from 1989-91. She received two Emmy nominations for the part. Muldaur was also the first woman president of the Academy of Television Arts & Sciences.
|via Memory Alpha