"English schoolboy and his Dutch pen friend chase a diamond smuggling gang in Holland."
Sean Scully
as Tim
Jacques Verbrugge
as Piet
Sandra Spurr
as Annike
Walter Randall
as The Guide
Thom Kelling
as Van Helder
Riek Schagen
as Mrs. Van Helder
Paul Ostra
as Diamond Cutter
Sacco van der Made
as Police Superintendent
Jean Lemaire
as Grandpa
John Soer
as Man in Blue
Gerard Doting
as Dutch Thug
Frans Kokshoorn
K. Brouwer
John Roden
as London Crook
Ian Dalrymple
Producer
Dock Mathieson
Conductor
Writer
Derek Williams
Ernest Hosler
Editor
David Osborne
Camera Operator
Muir Mathieson
Original Music Composer
Geoffrey Gurrin
Director of Photography
David Bracknell
Assistant Director
Muirne van Wyk
Continuity
Director
