Emily Blunt as Mary Poppins

Lin-Manuel Miranda as Jack

Ben Whishaw as Michael Banks

Emily Mortimer as Jane Banks

Pixie Davies as Annabel

Nathanael Saleh as John

Joel Dawson as Georgie

Julie Walters as Ellen

Meryl Streep as Cousin Topsy

Colin Firth as Wilkins / Wolf (voice)

Jeremy Swift as Gooding / Badger (voice)

Kobna Holdbrook-Smith as Frye / Weasel (voice)

Dick Van Dyke as Mr. Dawes Jr.

Angela Lansbury as Balloon Lady

David Warner as Admiral Boom

Jim Norton as Mr. Binnacle

Noma Dumezweni as Miss Penny Farthing

Tarik Frimpong as Angus

Sudha Bhuchar as Miss Lark

Steve Nicolson as Park Keeper

Christian Dixon as The Milkman

Christopher Godwin as Information Desk Clerk

John Dagleish as Courier

Karen Dotrice as Elegant Woman

Ian Conningham as Pub Landlord

Billy Barratt as Street Urchin

Felix Collar as Street Urchin

Kate Attwell as Street Urchin

Chris O'Dowd as Shamus the Coachman (voice)

Mark Addy as Clyde the Horse (voice)

Edward Hibbert as Parrot Umbrella (voice)

Ash as Willoughby

Shay Barclay as Leerie

Ashley Birchall as Leerie

Johnny Bishop as Leerie

Michael Carroll as Leerie

Jon-Scott Clark as Leerie

Leon Cooke as Leerie

Jack Harrison-Cooper as Leerie

Sean Corrie as Leerie

Momar Diagne as Leerie

Antony Edwards as Leerie

Aston Newman Hannington as Leerie

Jake Moyle as Leerie

Marlon Pelayo as Leerie

James Revell as Leerie

Ted Rogers as Leerie

Charles Ruhrmund as Leerie

Christopher Scott as Leerie

Zac Smith as Leerie

Craig Stein as Leerie

Alex J Sturman as Leerie

Jahrel Thomas as Leerie

Johnny White as Leerie

Teneisha Bonner as Female Dancer

Lavinia Fitzpatrick as Female Dancer

Tara Nicole Hughes as Female Dancer

Hannah Kenna-Thomas as Female Dancer

Jennifer Leung as Female Dancer

Rachel Muldoon as Female Dancer

Cassie Rogers as Female Dancer

Lorraine Stewart as Female Dancer

Calvin Chen as Leerie (uncredited)

Johanna Thea as Fairground Attendee (uncredited)

Antonio Raul Garcia as Boy (uncredited)

Raj Awasti as Bank Customer (uncredited)

Fran Targ as Homeless Soup kitchen (uncredited)

Jeremy Azis as Bank Customer 110 (uncredited)

Nina Kumar as Bank Customer (uncredited)

Jag Patel as Corporate Internal Bank Customer (uncredited)

Martyn Mayger as Banker (uncredited)

Steve Carroll as Tramp (uncredited)