Steve Coogan
Campbell Babbitt
Acting
Hilary Duff
Lucy Diamond
Acting
Olivia Thirlby
Tess Sullivan
Acting
Josh Peck
Jim Lement
Acting
Molly Shannon
Penelope Little
Acting
Brett Kelly
Blastoff! Chorus
Acting
Molly Price
Donna Arbetter
Acting
Max Hoffman
Fenster Itski
Acting
Sarah Lind
Peggy Popoladopolous
Acting
Laura Carswell
Lute Lement
Acting
Ingrid Nilson
Ann
Acting
Andrea Brooks
Sue
Acting
Andrew Wheeler
Principal Person
Acting
Gabrielle Rose
Mrs. Bridigan
Acting
Colleen Rennison
Sylvia
Acting
Aubrey Mozino
Blyth
Acting
Alexia Fast
Hannah (uncredited)
Acting
Kendra Waldman
Dusty Drake
Acting
Aaron Brooks
Ezra
Acting
Barry Greene
Sam Calalluci
Acting
Levi Sochet
Sam Calalluci (voice)
Acting
Katie Messina
Gina
Acting
Alana Husband
Angela
Acting
Barbara Greenbaum
Librarian
Acting
Brenna O'Brien
Diminutive Girl
Acting
Aiden Lane Robson
Gustave Person
Acting
David Allan Pearson
Grease Monkey
Acting
Jilena Cori
Mrs. Person
Acting
Patricia Drake
Mrs. Itski
Acting
Ashley Whillans
Blastoff! Chorus
Acting
Calum Worthy
Blastoff! Chorus
Acting
Advah Soudack
Blastoff! Chorus
Acting
Robin Eder-Warren
Blastoff! Chorus
Acting