These ladies are easily recognizable from the TOS character photo they are holding, but in case you need a little help I'll start from the back left: Lee Meriwether (Losira from "That Which Survives"), Celeste Yarnall (Yeoman Martha Landon from "The Apple"), Mariette Hartley (Zarabeth from "All Our Yesterdays"), Sherry Jackson (Andrea from ...
(It also helps that she is so skillfully portrayed by the beautiful Mariette Hartley.) In the end this episode tells us so much about Spock, one of the most intriguing characters in all of Trek. Only after he is sent back in time several millennia in the past and has lost the confines of his Vulcan logic he can find love and companionship.
Mariette Hartley and Nancy Kovack as astronaut wives in Marooned/MST3K Space Travelers.
This was a 4th-season episode. No sign of Mariette Hartley at all. And Joe's girlfriend would have been an adult, not a child.
Mariette Hartley who portrayed Zarabeth in "All of Our Yesterdays" in TOS. I kept rewinding her scenes over and over again. Her eyes, man, her eyes!
I remember a young pubescent me finding Mariette Hartley's midriff to be very hot in Genesis II. By the way, NBC's "standards and practices" made a bit of a big deal about Mariette Hartley NOT showing her navel in the TOS episode All our Yesterdays, so I bet when Roddenberry was able to show her navel in Genesis II, he literally doubled up on it.
Wasn't she wearing the exact same animal skin bikini that Mariette Hartley was barely keeping on in 'All Our Yesterdays'? I don't think so, Mariette Hartley was dressed for arctic type weather.