Leonard
Martin
Fidor
Paul
Christopher
Michael
Headmaster
Mr. Teasy-Weasy
1st Subaltern
Tom (archive footage) (uncredited)
Melvyn
Gordon
Tim
Sir Leonard Briggs
Mimi Le Purr / Roger Ellis
Mr. Mulvaney
Gregg Wilson
Detective Maxwell
Constable Kevin Goody
Self
Oscar
Raymond Carstairs
Binkie Cadwaller
Professor Fluke
Rory
Beluniare
Harrison
George Monday / Thermoman
Claude Mortimer
Ralph Ford
Lord Gormon Massey
Harry Witherspoon