Grandfather
Polonius
Fiver (voice)
Signor Leonato
Henry
Flight Lt. Timothy Webb
Sir Nathaniel
The Husband
The Hon. Galahad Threepwood
Hamish
Tomkins
Newspaper Seller
Miles Gannet
Himself
Isambard Kingdom Brunel
Jamieson
Nikita
Malvolio
Smee
'Popeye' Lewis
Nigel Hadfield
Bluntschli
Louis XIII (voice) (uncredited)
Louis XIII (voice)
Archive Footage
Narrator, Roobarb, Custard / lot of characters. (uncredited)
The Young Husband
A
Ted Washbrook
The Rector
Herbert Brush
'Mrs Binster'
Mouse (voice)
Medical Student (uncredited)
Rat
Dr. Corbitt
Larry James
Lord Morton
Lieutenant Bardolph
Colbourne
Roobarb/Custard (voice)
Mr. Adolphus Spanker
Acting Role (archive footage) (uncredited)
Bishop
Adam
Himself - Commentator
Old Arthur/George
Mr. Smythe
Barry Moore
Eustace Hignett
Jack Broome
The Chief Caretaker
Stephen Wentworth
Parker
Self
Chief Caretaker
Albert Dobson
Hector MacDonald
Tom Good
Mr. Sprout
Raymond Doncaster
Godfrey Spry
Broom
George Lemon
Ralph Tanner
Alias
Richard Briers
Jim Wright
Narrator
Ken Tracey
Sir Charles Fairley
Reg
Wilson
(voice)