Originally Posted by kevin
I believe Muldaur had retired from acting by then. She retired after finishing her two season stint on L.A Law.
She did voice acting up til '93 according to IMDB, on Batman:TAS.
About why Gates left, I heard a rumor that Maurice Hurley hated Gates McFadden. He was a co-executive producer on the show until he left after the second season, which coincides with Gates' return in the third season.