Peter Rabbit

James Corden

as Peter Rabbit (voice)

Rose Byrne

as Beatrix 'Bea' Potter / Jemima Puddle-Duck (voice)

Domhnall Gleeson

as Thomas McGregor / Mr. Jeremy Fisher (voice)

Margot Robbie

as Flopsy Rabbit / Narrator (voice)

Elizabeth Debicki

as Mopsy Rabbit (voice)

Daisy Ridley

as Cottontail Rabbit (voice)

Colin Moody

as Benjamin Bunny (voice)

Sam Neill

as Mr. McGregor / Tommy Brock (voice)

Marianne Jean-Baptiste

as Harrods General Manager

Felix Williamson

as Derek

Sia

as Mrs. Tiggy-Winkle (voice)

Fayssal Bazzi

as Mr. Tod (voice)

Ewen Leslie

as Pigling Bland (voice)

Christian Gazal

as Felix D'eer (voice)

Rachel Ward

as Josephine Rabbit (voice)

Bryan Brown

as Mr. Rabbit (voice)

David Wenham

as Johnny Town-Mouse (voice)

Will Reichelt

as JW Rooster II (voice)

Ming-Zhu Hii

as Sarabeth

Lance Kerfuffle

as J. David Scarfington

Natalie Dew

as Janelle

Terenia Edwards

as Siobhan

Vauxhall Jermaine

as Harrods Security

Tom Greaves

as Harrods Security

Sacha Horler

as Betty

Alex Blias

as Phil

Dave Lawson

as Chris

Sam Haft

as Postman

Jessica Friedman

as Singing Sparrow (voice)

Shana Halligan

as Singing Sparrow (voice)

Katharine Hoye

as Singing Sparrow (voice)

Chris Mann

as Singing Sparrow (voice)

Chad Reisser

as Singing Sparrow (voice)

Fletcher Sheridan

as Singing Sparrow (voice)

Alexandra Gluck

as London Street Rat (voice)

Taryn Gluck

as London Street Rat (voice)

Grant Crookes

as Passerby (uncredited)

Gareth Davies

as Bannerman

Karl Farrer

as Train Commuter (uncredited)

Philippe Lacheau

as (voice) (uncredited)

Élodie Fontan

as (voice) (uncredited)

Julien Arruti

as (voice) (uncredited)