Michael McKean

Mr. Bream (voice)

Courtland Mead

Gustav Patten 'Gus' Griswald (voice)

Ashley Johnson

Gretchen Grundler (voice)

Jason Davis

Mikey Blumberg (voice)

James Earl Jones

Mister (voice)

Rickey D'Shon Collins

Vincent Pierre 'Vince' LaSalle (voice)

Andrew Lawrence

Theodore J. 'T.J.' Detweiler (voice)

Bobbi Page

Chorus (singing voice) (uncredited)

Ross Malinger

T.J. Detweiler (archive sound)

Pamela Adlon

Ashley Spinelli

Allyce Beasley

Miss Alordayne Grotkey

April Winchell

Miss Muriel P Finster

Dabney Coleman

Principal Peter Prickly

Gregg Berger

Robotic Santa/TV Editor/Astronaut

Klee Bragger

Digger Sam

Dick Clark

Dick Clark

Rachel Crane

Ashley Q

E. G. Daily

Trisha/Cap'n Sticky/Mall Elf/Kid #2

Paul Dooley

Hank the Janitor/Mall Santa

Blake McIver Ewing

Menlo

Robert Goulet

Mikey Blumberg

Jess Harnell

Ricky McCloud

Tress MacNeille

(voice)

Anndi McAfee

Ashley A (voice)

Sam McMurray

(voice)

Ryan O'Donohue

Randall Weems/Digger Dave

Katey Sagal

Flo Spinelli

Ronnie Schell

Mayor Fitzhugh

Michael Shulman

Hustler Kid

Francesca Marie Smith

Ashley B (voice)

Erik von Detten

Erwin Lawson

Frank Welker

Animal voices