Générique complet
Horrible Henry
Theo Stevenson
Horrid Henry
Anjelica Huston
Miss Battleaxe
Ross Marron
Perfect Peter
Parminder Nagra
Miss Lovely
Mathew Horne
Dad
Siobhan Hayes
Mum
Richard E. Grant
Vic Van Wrinkle
Prunella Scales
Great Aunt Greta
Scarlett Stitt
Moody Margaret
Lloyd Howells
Rude Ralph
David Schneider
Soggy Sid
Kimberley Walsh
Prissy Polly
Billy Kennedy
Weeping William
Noel Fielding
Ed Banger
Jo Brand
Demon Dinner Lady
Helen Lederer
Rich Aunt Ruby
Rebecca Front
Miss Oddbod
Jack Sanders
Aerobic Al
Reuben Lee
Brainy Brian
Helena Barlow
Sour Susan
Nikita Mistry
Gorgeous Gurinda
Frank Kauer
Spotless Sam
Joshua-James Thomas
Goody Goody Gordon
Tyger Drew-Honey
Stuck-Up Steve
Tamsin Heatley
Madam Tutu / Fang (voice)
Dominic Wood
2C4S Presenter 1
Richard McCourt
2C4S Presenter 2
Zac Gabriel Werb
Tidy Ted
Keely Cat Wells
Alice
Kia Pegg
Vicious Vicky
Sam Davis
Keepy Uppy Boy
Freddie Rose
Schoolboy (uncredited)
Harvey Walsh
Schoolboy (uncredited)
Réalisation
Scénario
Production
Claire Barry
Direction de production
Allan Niblo
Production exécutive
Nigel Williams
Production exécutive
Caroline Levy
Coproduction
Tim Smith
Production exécutive
James Richardson
Production exécutive
James Swarbrick
Production exécutive
Keri Atkins
Production associée
Huberta von Liel
Production Supervisor
Paul Brett
Production exécutive
Mike Watts
Production exécutive
Suzanne M. Smith
Casting
Rupert Preston
Production
Lucinda Whiteley
Production
Gary Davy
Casting
Thomas Dixon
Production Assistant
Image
Montage
Son et musique
Décors
Costumes et maquillage
Colleen Kelsall
Costumes
Sunny Rowley
Costume Supervisor
Sophia Spink
Assistant Costume Designer
Angie Mudge
Maquillage
Adrian Rigby
Special Effects Makeup Artist
Jemma Carballo
Maquillage