Tim Downie
Montgomery Clyde
Madeleine Worrall
Agatha Clyde
Lottie Steer
Young Millicent
Geoffrey Palmer
Head Geographer
Theresa Watson
Stenographer
Michael Gambon
Uncle Pastuzo
Hugh Bonneville
Henry Brown
Madeleine Harris
Judy Brown
Samuel Joslin
Jonathan Brown
Michael Bond
Kindly Gentleman
Eddie Nestor
Underground Ticket Inspector
Johnny Derbyshire
Master Gruber
Mary Roscoe
Master Gruber's Aunt
Llewella Gideon
Class Teacher
Steve Oram
Paddington Station Security Guard
Tom Meeten
Paddington Station Security Guard
Alice Lowe
Geographers' Guild Receptionist
Catherine Shepherd
Geographer
Javier Marzan
Buckingham Palace Sentry
Sean Bridgeman
Morgan Clyde
Justin Edwards
Desk Sergeant
Cleo Sylvestre
Marjorie Clyde
Gus Brown
Second Geographer
Rufus Jones
Third Geographer
Kenneth Hadley
Fourth Geographer
David McKail
Fifth Geographer
James Bachman
Sixth Geographer
Steve Edge
Natural History Museum Security Guard
Hamish McColl
Petting Zoo Keeper
Lauren Barrand
Additional Voices
Alexander Bracq
Commuter #1
Asim Chaudhry
Security Guard
Bern Collaço
Police Officer
Faith Elizabeth
Commuter #3
Mick Fryer-Kelsey
Professor
Nigel Genis
Station Blocker
Kornelia Horvath
Hungarian immigrant
Yasmin J. James
Pedestrian
Shaz Lancaster
Portobello Market shopper
Stuart Matthews
Commuter #5
Matthew David McCarthy
Docker
Jack Philips
Market Stall Owner
Vic Waghorn
Additional Voices