Kadro (33)
Steve CooganCampbell Babbitt
Hilary DuffLucy Diamond
Olivia ThirlbyTess Sullivan
Josh PeckJim Lement
Molly ShannonPenelope Little
Brett KellyBlastoff! Chorus
Molly PriceDonna Arbetter
Max HoffmanFenster Itski
Sarah LindPeggy PopoladopolousLaura CarswellLute Lement
Ingrid NilsonAnn
Andrea BrooksSue
Andrew WheelerPrincipal Person
Gabrielle RoseMrs. Bridigan
Colleen RennisonSylvia
Aubrey MozinoBlyth
Alexia FastHannah (uncredited)Kendra WaldmanDusty Drake
Aaron BrooksEzra
Barry GreeneSam CalalluciLevi SochetSam Calalluci (voice)
Katie MessinaGina
Alana HusbandAngelaBarbara GreenbaumLibrarian
Brenna O'BrienDiminutive GirlAiden Lane RobsonGustave Person
David Allan PearsonGrease Monkey
Jilena CoriMrs. Person
Patricia DrakeMrs. ItskiAshley WhillansBlastoff! Chorus
Calum WorthyBlastoff! Chorus
Advah SoudackBlastoff! ChorusRobin Eder-WarrenBlastoff! Chorus