Stewart Rome
— Sir Hubert Ware
Betty Carter
— Lady Magda Ware
Ian Fleming
— Michael Adye, KC
Wellington Briggs
— Sir Henry Egerton, Chief of Scotland Yard
Patrick Stewart
— Marston Gurney, Ware's Secretary
Cynthia Murtagh
— Celia Gurney
Patrick Ludlow
— Eustace Ede
Cameron Carr
— Detective Inspector Watkins, CID
Syd Ellery
— Tommy Bold
Robert Abel
— Ware's Gardener
John Valentine
— The Attorney General
Percy Cookson
— The Judge
Bernard Vaughan
— Ware's Butler
Gillian Dean
— Ware's Lover