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