Anna Moffo
Barbara Worth
Ida Galli
Isabelle Carter
Gastone Moschin
Sgt. Aloisius Thorpe
Peter Baldwin
Anthony Carter
Lance Percival
Supt. Grey
Giacomo Rossi Stuart
Ted Collins
Christopher Chittell
Georgie Kemple
Marisa Fabbri
Aunt Gladys Kemple
Quinto Parmeggiani
Lawrence Carter
Beryl Cunningham
Pauline Collins
Orchidea De Santis
Evelyn, the maid
Claudio Undari
Arthur, the valet
Franco Borelli
Stranger
Ballard Berkeley
Peter, the butler
Richard Caldicot
Mr. Caldicot, the lawyer
Harry Hutchinson
Harry, the gardener