I don’t know about you, but damn I think this would have been a great movie.
My favorite so far 
Bizarro Animal House
Pinto - F. Murray Abraham
Otter - Chevy Chase
Neidermyer - Dee Snyder
D-Day - Bruce Willis
Boon - Jim Carrey
Greg Marmallard - Dan Akroyd
Chip Diller - Neve Campbell
Professor Jennings - Edward Norton
Flounder - his agent
Bluto - Bob Woodward
Dean Wormer - a naked animated mute woman with a big sword
Bizarro Moulin Rouge:
Satine: Fionnula Flanagan
Christian: A big ol’ bag of heroin
The Duke: Hugh Jackman
Henri Toulouse-Lautrec: Leonardo DiCaprio
And Pauly Shore as the Green Fairy! (ok so he wasn’t her nemesis but it was the best I could come up with)