And a choice like him or Pitt is a heck of a lot better than some cast off from American Idol or High School Musical.
Heck, I don't wanna see those types on Sesame Street, let alone a muppet film. I really hope Disney leaves them alone, and lets them do their own thing with the film... we wouldn't want a repeat of MFS in any aspect (though I felt Jeff Tambor was great in it).
As for a villain - I would love for Grodin to be the main heavy. Character actors, rather than top movie stars, tend to work better in those roles.
Dispite the fact I never liked the term character actor (aren't all actors supposed to play characters?) I agree with that completely. There has never been a villain in a muppet film I didn't like. Charles Durning, Charlie Grodin, Dabney Coleman (he was sort of a villain, right?), The Sleeze Brothers (or whatever they were from Follow that Bird), Mandy Patankin (in EIG), Tim Curry, Michael Caine (if you can call Scrooge a full fledged villain), Jeff Tambor, Joan Cusack..... That's what was missing from OZ. It was a refreshing experiment to see Piggy play a villain, sure... but you miss out on great villain moments when the Muppets play against themselves.