Megapetarda: Reparto
Emma Roberts
Poppy Moore
Alex Pettyfer
Freddie Kingsley
Natasha Richardson
Mrs. Kingsley
Kimberley Nixon
Kate
Juno Temple
Jennifer 'Drippy' Logan
Johnny Pacar
Roddy
Linzey Cocker
Josie
Aidan Quinn
Gerry Moore
Georgia King
Harriet Bentley
Sophie Wu
Kiki
Lexi Ainsworth
Molly Moore
Shelby Young
Ruby
Shirley Henderson
Matron
Nick Frost
Mr. Christopher
Selina Cadell
Mrs. Loughton
Daisy Donovan
Miss Rees-Withers
Ruby Thomas
Jane
Jason Watkins
Mr. Nellist
Eleanor Turner-Moss
Charlotte
Maisie Preston
'Wow' Girl
Tommy Kijas
Jake
Sonia Rockwell
Lola
Kelsey Sanders
Skye
Katelyn Pacitto
Twin #1
Kara Pacitto
Twin #2
Vanessa Branch
Rosemary
Hallie Eisenberg
Ruthie
Nick Frost
Mr. Kingsley