Charlie Adler

Buster Bunny / Usher (voice)

Tress MacNeille

Babs Bunny / Big Boo / Babs' Mother / Emily Duff / Roseanne Barr / Barbara Walters / Arsenio Hall / Additional Voices (voice)

Joe Alaskey

Plucky Duck / Tupelo Toad / Johnny Carson / Ed McMahon / Elmer Fudd / Additional Voices (voice)

Don Messick

Hamton J. Pig / Radio Announcer (voice)

Jonathan Winters

Wade Pig / Superman (voice)

Edie McClurg

Winnie Pig (voice)

Frank Welker

Uncle Stinky Pig / Byron Basset / Furrball / Little Beeper / Gogo Dodo / Vinnie / Mac Duff / Additional Voices (voice)

Cree Summer

Elmyra Duff / Mary Melody / Oprah Winfrey (voice)

Sorrell Booke

Big Daddy Boo (voice)

Rob Paulsen

Fowlmouth / Johnny Pew / Banjo the Woodpile Possum / Mr. Hitcher / Manager / Additional Voices (voice)

Maurice LaMarche

Dizzy Devil / David Letterman / Horatio / Theatre Voice (voice)

Gail Matthius

Shirley the Loon / Sissy Boo (voice)

Kath Soucie

Fifi La Fume / Little Boo / Little Sneezer / Bimbette Skunk (voice) (as Kath Souci)

Candi Milo

Sweetie Pie (voice)

Paul Julian

Road Runner (archive sound) (uncredited)