James Corden

Peter Rabbit (voice)

Rose Byrne

Bea

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)