Cast and credits of Sideshow Bob Roberts

Dan Castellaneta
Homer Simpson / Man in Library / Mayor Quimby / Chinese Principal #2 / Grampa / Barney Gumble / Vampire / Rich Texan / Moose Mason /

Julie Kavner
Marge Simpson (voice)

Nancy Cartwright
Bart Simpson / Ralph Wiggum / Kearney (voice)

Yeardley Smith
Lisa Simpson (voice)

Hank Azaria
Radio Announcer / Carl / Chinese Principal #1 / Old Jewish Man / Moe Szyslak / Prison Guard / Librarian / Prisoner #1 (voice)

Harry Shearer
Lenny / Birch Barlow / Principal Skinner / Jasper / Mr. Burns / Smithers / Dr. Hibbert / Rainier Wolfcastle / Kent Brockman (voice)

Barry Hansen
Dr. Demento (voice) (as Dr. Demento)

Kelsey Grammer
Sideshow Bob (voice)

Phil Hartman
Lionel Hutz (voice)

Larry King
Larry King (voice)

Marcia Wallace
Edna Krabappel (voice)

Henry Corden
Fred Flintstone (voice)

Pamela Hayden
KBBL Jingle Singers / Mrs. McFearley / Jimbo Jones / Milhouse Van Houten (voice)