James Corden
Peter Rabbit (voice)
Domhnall Gleeson
Mr. Thomas McGregor
David Oyelowo
Nigel Basil-Jones
Margot Robbie
Flopsy Rabbit / The Narrator (voice)
Elizabeth Debicki
Mopsy Rabbit (voice)
Aimee Horne
Cottontail Rabbit (voice)
Colin Moody
Benjamin Bunny (voice)
Lennie James
Barnabas (voice)
Damon Herriman
Tom Kitten (voice)
Hayley Atwell
Mittens (voice)
Rupert Degas
Samuel Whiskers / Little Pig Robinson (voice)
Sia
Mrs. Tiggy-Winkle (voice)
Sam Neill
Tommy Brock (voice)
Ewen Leslie
Pigling Bland (voice)
David Wenham
Johnny Town-Mouse (voice)
Will Reichelt
JW Rooster II (voice)
Christian Gazal
Felix D'eer (voice)
Tim Minchin
Busker K. Bushy, Esq (voice)
Stewart Alves
Mr. Tod (voice)
Faizan Munawar Varya
Ray Rabbit (voice)
Jude Hyland
Toy Shop Young Boy
Neil Hayes
Toy Shop Father
Neilesh Ambu
Passerby (uncredited)