Campbell Babbitt
Lucy Diamond
Tess Sullivan
Jim Lement
Penelope Little
Donna Arbetter
Fenster Itski
Peggy Popoladopolous
Lute Lement (as Laura Konechny)
Ann
Sue
Principal Person
Mrs. Bridigan
Sylvia
Blythe
Ezra
Sam Calalluci
Sam Calalluci (voice) (as David Sochet)
Gina
Angela
Dusty Drake (as Kendra Sue Waldman)
Librarian
Diminutive Girl
Gustave Person
Grease Monkey
Mrs. Person
Mrs. Itski
Blastoff! Chorus
Hannah (uncredited)
Hank Pelzman (uncredited)
Reporter #1 (uncredited)
Funeral Director (uncredited)
Bus Driver (uncredited)
Landlord Lady (uncredited)