as T.J. Detweiler (voice)

as Vince La Salle (voice)

as Spinelli (voice)

as Gretchen Grundler (voice)

as Mikey Blumberg (voice)

as Gus Griswald (voice)

as Ms. Finster / Mrs. Detweiller (voice)

as Principal Peter Prickly (voice)

as Digger Dave / Randall (voice)

as Mikey's Singing Voice (voice)

as Becky (voice)

as Fenwick (voice)

as Dr. Rosenthal (voice)

as Dr. Phillium Benedict (voice)

as Lunchlady Harriet (voice)

as Lunchlady Irma / Ms. Lemon / Opera Director / Dr. Steinheimer (voice)

as Cop #1 (voice)

as Cop #2 (voice)

as Guard #1 (voice)

as Guard #2 (voice)

as Counselor (voice)

as Mort Chalk (voice)

as Superintendent (voice)

as Coach (voice)

as Ashley B / Swinger Girl / Upsidedown Girl (voice)

as Captain Brad Lawson (voice)

as Coach Kloogie / Mr. Detweiler (voice)

as Jordan (voice)

as Ashley A (voice)

as King Bob (voice)

as Ashley Q (voice)

as Digger Sam (voice)

as Colonel O'Malley (voice)

as Mr. Yamashiro (voice)

as Bald Guy (voice)

as Miss Grotke (voice)

as Tech #1 (voice)

as Cap'n Sticky (voice)

as Dr. Lazenby / Tech #2 (voice)

as Technician (voice)

as Golfer #2 / Scientist #2 (voice)

as Soldier Kid / Wrestler Kid (voice)

as Hustler Kid (voice)

as Mrs. Flo Spinelli (voice) (uncredited)