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