Just give her the Emmy now. It would be a crime if Kristen Chenoweth didn't get a statue for her turn as "Glee's" ultimate has-been-who-never-was, April Rhodes. If there was ever an actress born to play a part, Chenoweth is the one. We were delighted to hear that she'll be reprising the role later this season, but if you give us an inch, we'll take a mile - and we're hoping that she'll join the cast for good. She's not the only guest star who we feel adds a missing element to some of our favorite shows. Here are other stars who we'd like to see sign on as series regulars.