Domhnall Gleeson

Alan Alexander Milne / Blue

Margot Robbie

Daphne Milne

Will Tilston

Christopher Robin Milne / Billy Moon

Alex Lawther

Christopher Robin Milne (Teen)

Kelly Macdonald

Olive Rand / Nou

Phoebe Waller-Bridge

Mary Brown

Vicki Pepperdine

Betty

Stephen Campbell Moore

Ernest H. Shepard

Richard McCabe

Rupert

Geraldine Somerville

Lady O

Nico Mirallegro

Cooper

Shaun Dingwall

Alfred Brockwell

Dan MacKay

Bob Clerkwell

Mossie Smith

Sharon the Midwife

Tommy Rodger

Douglas Minor

Robert Portal

Headmaster

Allegra Marland

Fan

Richard Clifford

Toy Shop Manager

Simon Connolly

Radio Host

Richard Dixon

MC at Pageant

Sarah Jayne Butler

Winning Mum

Victoria Bavister

Mother at Zoo

Simon Williams

Zoo Director

Nick Blakeley

Zoo Photographer

Mark Tandy

Portrait Photographer

Bentley Kalu

American Police

Rolan Bell

American Police

Mark McKerracher

Groupie

Jason Matthewson

Theatre Patron

Adam Lazarus

Theatre Goer

Gintare Beinoraviciute

Party Guest

Callum Forman

Party Guest

Gemma Wilks

Party Guest

Honey Holmes

Party Guest

Ceri Jerome

Dancer