Margot Robbie Flopsy Rabbit / Narrator (voice)
Rose Byrne Beatrix 'Bea' Potter / Jemima Puddle-Duck (voice)
Sam Neill Mr. McGregor / Tommy Brock (voice)
Fletcher Sheridan Singing Sparrow (voice)
James Corden Peter Rabbit (voice)
Daisy Ridley Cottontail Rabbit (voice)
Domhnall Gleeson Thomas McGregor / Mr. Jeremy Fisher (voice)
Elizabeth Debicki Mopsy Rabbit (voice)
Rachel Ward Josephine Rabbit (voice)
David Wenham Johnny Town-Mouse (voice)
P.J. Voeten First Assistant Director
Marianne Jean-Baptiste Harrods General Manager
Lance Kerfuffle J. David Scarfington
Sacha Horler Betty
Sam Haft Postman
Adrien Seffrin First Assistant Camera
Bryan Brown Mr. Rabbit (voice)
Rob Lieber Writer
Jack Mayo First Assistant "B" Camera
Sia Mrs. Tiggy-Winkle (voice)
Zoe Liang Second Assistant Director
Chris Upson Visual Effects
Will Gluck Writer, Director, Producer
Vauxhall Jermaine Harrods Security
Dominic Lewis Original Music Composer
Peter Menzies Jr. Director of Photography
Sara Desmond Unit Production Manager
Andrew Power Second Unit First Assistant Director
Jac Norton Second Assistant "B" Camera
Naomi Sharp Second Assistant "A" Camera
Grant Crookes Passerby (uncredited)
David Elmes First Assistant "A" Camera
Ben Smith-Petersen Stunt Double
Barney Shakespeare Third Assistant Director
Rob Coleman Animation Director
Rebecca Crowe First Assistant Camera
Christian Gazal Editor, Felix D'eer (voice)
Matt Windon First Assistant "A" Camera
Fayssal Bazzi Mr. Tod (voice)
Felix Williamson Derek
Gerard Maher First Assistant "B" Camera
Charmian Gradwell Dialect Coach
Ming-Zhu Hii Sarabeth
Danielle Blake Second Second Assistant Director
David Williams Lead Animator
Lawrence Woodward Stunt Coordinator
Sally Hague Dialect Coach
Frank Flick "A" Camera Operator
Alexandra Gluck London Street Rat (voice)
Taryn Gluck London Street Rat (voice)
Natalie Dew Janelle
Jessica Friedman Singing Sparrow (voice)
Ian Jackson Second Assistant "A" Camera
Andrew Jones Second Assistant "B" Camera
Michael Furniss Visual Effects
Christine Luby Third Assistant Director
Colin Moody Benjamin Bunny (voice)
Lorena Pagés Second Assistant Camera
Beatrix Potter Novel
Ewen Leslie Pigling Bland (voice)
Dave Lawson Chris
Inaki De Ubago Second Assistant Camera
Simon Whiteley Production Design
Simon Dunn Second Assistant "A" Camera
David Churchyard First Assistant "B" Camera
Gareth Davies Bannerman
Chris Mann Singing Sparrow (voice)
Alex Blias Phil
Will Reichelt JW Rooster II (voice)
Terenia Edwards Siobhan
Richard Bradshaw "B" Camera Operator
Xander Collier Assistant Director