Woo-Hoo Dunnit?

Dan Castellaneta

Homer Simpson / Abe Simpson / Barney Gumble / Krusty the Clown / Groundskeeper Willie / Mayor Quimby (voice)

Julie Kavner

Marge Simpson / Patty Bouvier / Selma Bouvier / Jacqueline Bouvier (voice)

Nancy Cartwright

Bart Simpson / Maggie Simpson / Nelson Muntz / Ralph Wiggum (voice)

Yeardley Smith

Lisa Simpson / Maggie Simpson (voice)

Hank Azaria

Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl Carlson / Superintendent Chalmers (voice)

Harry Shearer

Ned Flanders / Mr. Burns / Smithers / Principal Skinner / Lenny Leonard (voice)

Will Forte

King Toot (voice)

Liev Schreiber

"Dateline: Springfield" Narrator (voice)

Russi Taylor

Martin Prince (voice)

Jackie Mason

Hyman Krustofsky (voice)

Maggie Roswell

Helen Lovejoy (voice)

Ken Burns

Ken Burns (voice)

Pamela Hayden

Milhouse Van Houten (voice)

Tress MacNeille

Lady (voice)