Terence Edmond

as Patrick Knowles

as Inspector Smith

as Sam Leadbitter

as Lionel Frush

as Sgt. Bacon

as 1st Student at Party (uncredited)

as Young PC (uncredited)

as Alan Scully

as Ken

as Ken

as Alan Scully

as Headmaster

as Announcer

as Cliff Turner

as Peter Draper

as Lionel Frush

as Henry

as Jack Hardacre

as Captain Yates

as PC Ian Sweet

as PC Sweet