Hard to say if that's true. But I've heard the same thing about Robert Beltran. At least Muldaur was older and perhaps her memory was beginning to fade. What's Beltran's excuse. Oh that's right. He didn't care for the writing. Muldaur went from Star Trek to L.A. Law and was on that show for 2 seasons. Something tells me they wouldn't have kept her around that long if she was having trouble remembering her lines.