Ben Whishaw

Paddington (voice)

Hugh Bonneville

Henry Brown

Sally Hawkins

Mary Brown

Madeleine Harris

Judy Brown

Samuel Joslin

Jonathan Brown

Julie Walters

Mrs. Bird

Nicole Kidman

Millicent

Imelda Staunton

Aunt Lucy (voice)

Peter Capaldi

Reginald Curry

Michael Gambon

Uncle Pastuzo (voice)

Jim Broadbent

Samuel Gruber

Madeleine Worrall

Agatha Clyde

Tim Downie

Montgomery Clyde

Matt King

Andre the Thief

Simon Farnaby

Barry

Kayvan Novak

Grant

Matt Lucas

Joe

Mary Roscoe

Master Gruber's Aunt

Alice Lowe

Geographers' Guild Receptionist

Will Smith

Geographer (Present Day)

Toby Williams

Geographer (Present Day)

Catherine Shepherd

Geographer (Present Day)

Cleo Sylvestre

Marjorie Clyde

Geoffrey Palmer

Head Geographer

Gus Brown

Second Geographer

Rufus Jones

Third Geographer

David McKail

Fifth Geographer

James Bachman

Sixth Geographer

Javier Marzan

Buckingham Palace Sentry

Llewella Gideon

Class Teacher

Justin Edwards

Desk Sergeant

Iain Mitchell

Dog Owner

Michael Bond

Kindly Gentleman

Steve Edge

Natural History Museum Security Guard

Steve Oram

Paddington Station Security Guard

Hamish McColl

Petting Zoo Keeper

Dominic Coleman

Policeman

Ross Boatman

Trader

Eddie Nestor

Underground Ticket Inspector

George Newton

Angel (uncredited)

Ancuta Breaban

Commuter #2 (uncredited)

Faith Elizabeth

Commuter #3 (uncredited)

Stuart Matthews

Commuter #5 (uncredited)

Dennis Good

Immigrant (uncredited)

Asim Chaudhry

Security Guard (uncredited)

Vic Waghorn

Additional Voices (voice) (uncredited)