Ladies from TMS season one

[giovannii]

I don;t know, but I can guess.
My guess is that at that time, the Muppets were still very much into developing characters to particular performers. Many of those Season 1 characters that were more or less dropped were Eren Ozkar's. She left the show. So they developed a new bunch of characters more characteristic of her replacement. (who incidentally, had performed Mildred, and , Zelda as part of her TMS audition). - hence the introduction very early on in Season II of Lou-The-Jugband-Lady, and later on of course Annie Sue.

Annie Sue my favourite female Muppet.

 

[Daffyfan4ever]

Well, Frank actually didn't participate much on the "Muppets Tonight." Most scenes with his characters were either inserts or dubbed over. Besides, anyone could have performed Mildred. I heat that in the first season of TMS she had been performed by Frank, Richard, Dave and Erin.