Fiona Richmond
— Fiona
Donald Sumpter
— Mark
Anthony Steel
— Robert
Victor Spinetti
— Duncan
Ronald Fraser
— Marty
Joan Benham
— Norma Blackhurst
Graham Crowden
— Lord Yardarm
Graham Stark
— Inspector Flaubert
Percy Herbert
— Hubert
John Hamill
— Daniel
Harry H. Corbett
— Art
John Clive
— Willi
Eddie O'Dea
— Buddy
Linda Regan
— Secretary
Heather Deeley
— Assistant
Helli Louise
— Third 'Men Only' Girl (uncredited)
Patricia Bourdrel
— Madeleine