Margot Robbie Flopsy Rabbit / The Narrator (voice)
Hayley Atwell Mittens (voice)
Sam Neill Tommy Brock (voice)
Rose Byrne Bea
Elizabeth Debicki Mopsy Rabbit (voice)
David Wenham Johnny Town-Mouse (voice)
David Oyelowo Nigel Basil-Jones
Domhnall Gleeson Mr. Thomas McGregor
Lennie James Barnabas (voice)
Damon Herriman Tom Kitten (voice)
James Corden Peter Rabbit (voice)
Sia Mrs. Tiggy-Winkle (voice)
Will Gluck Writer, Producer, Director
Rupert Degas Samuel Whiskers / Little Pig Robinson (voice)
Ewen Leslie Pigling Bland (voice)
Tim Minchin Busker K. Bushy, Esq (voice)
Nikki Barrett Casting
Dave Lawson Chris
Patrick Burleigh Writer
Dominic Lewis Original Music Composer
Damian Wyvill First Assistant "B" Camera
Peter Menzies Jr. Director of Photography
Ronan Binding Animation
Colin Moody Benjamin Bunny (voice)
Roger Ford Production Design
Jude Hyland Toy Shop Young Boy
Rhavin Banda Location Manager
Beatrix Potter Characters
Reetu Aggarwal 3D Artist
Tara Morice Officiant
Rob Coleman Head of Animation
Will Reichelt Visual Effects Supervisor, JW Rooster II (voice)
Stewart Alves Mr. Tod (voice)
Charmian Gradwell Dialect Coach
Matt Villa Editor
Josh Simmonds Visual Effects Supervisor
Jon Moore Picture Car Coordinator
Lizzy Gardiner Costume Design
Catherine Bishop Producer
Luciano A. Muñoz Sessarego Visual Effects
Wende Crowley Music Supervisor
Jonathan V. Hludzinski Executive Producer
Doug Belgrad Executive Producer
Tom Golding Carlos (Aide)
Zareh Nalbandian Producer
Neilesh Ambu Passerby (uncredited)
Aimee Horne Cottontail Rabbit (voice)
Alex Blias Phil
Christian Gazal Felix D'eer (voice)
Sally Eccleston "C" Camera Operator
Jason Lust Executive Producer
Aaron Healey Swing
Nicholas Dare Art Direction
Sophie Nash Art Direction
Anna Gregory Swing
Oliver Hay Swing
Jodi Hildebrand Producer
Emma Topping Executive Producer
Faizan Munawar Varya Ray Rabbit (voice)
Thomas Merrington Executive Producer