Colin Firth

Wilkins / Wolf (voice)

Dick Van Dyke

Mr. Dawes Jr.

Meryl Streep

Cousin Topsy

Angela Lansbury

Balloon Lady

Emily Mortimer

Jane Banks

Julie Walters

Ellen

Sudha Bhuchar

Miss Lark

Pixie Davies

Annabel

Emily Blunt

Mary Poppins

John Dagleish

Courier

Lin-Manuel Miranda

Jack

Kobna Holdbrook-Smith

Frye / Weasel (voice)

Jeremy Swift

Gooding / Badger (voice)

David Warner

Admiral Boom

Steve Nicolson

Park Keeper

Rob Marshall

Director

Ben Whishaw

Michael Banks

Jim Norton

Mr. Binnacle

Callum McDougall

Executive Producer

Nathanael Saleh

John

Joel Dawson

Georgie

Noma Dumezweni

Miss Penny Farthing

Tarik Frimpong

Angus

Christian Dixon

The Milkman

Christopher Godwin

Information Desk Clerk

Karen Dotrice

Elegant Woman