Vince Edwards as Charles Hood

Judy Geeson as Sue Trenton

Peter Vaughan as Hammerhead

Diana Dors as Kit

Michael Bates as Andreas / Sir Richard

Beverly Adams as Ivory

Patrick Cargill as Condor

Patrick Holt as Huntzinger

William Mervyn as Walter Perrin

Douglas Wilmer as Pietro Vendriani

Tracy Reed as Miss Hull

Kenneth Cope as Motorcyclist

Kathleen Byron as Lady Calvert

Jack Woolgar as Tookey Tate

David Prowse as George

Veronica Carlson as Ulla

Penny Brahms as Frieda

Maggie Wright as Roselle