anything to the rumor that Roddenberry asked Majel to play M'Ress in TMP?
I've never been able to find the reference again, but I think it was a letter/memo from Gene to numerous Star Trek clubs during the early days of TMP, printed in my club's newsletter before
I joined it (a friend used to have all the back issues).
Gene was asked if Arex and M'Ress would be included in (what eventually became) TMP. He said Arex would be too hard to create in live-action, but he'd asked Majel to consider a dual role: Dr Chapel and
M'Ress. Majel was quick to say no, due to the heavy makeup a live-action Caitian would require.