Ken Clark

as Dick Hallam

Irina Demick

as Sylvie Meynard

Luigi Vannucchi

as Brook

Loredana Nusciak

as The Shadow's Agent

Jacques Berthier

as Colonel Callaghan

Carlo Hintermann

as The Shadow's Agent with furry collar

Michel Bardinet

as Francisco Aguirrez

Giampiero Albertini

as Cunningham's Chief Agent

Angelo Infanti

as Pedro Almereyda / Max Schulz

Franco Giornelli

as Cunningham's Agent

Andrea Scotti

as Cunningham's Agent Disguised as a Nurse

Solvi Stübing

as Hotel Maid

Dario De Grassi

as Brook's Agent

Adriano Uriani

as

Antonio Marsina

as Brook's Agent

Peter Blades

as

Loris Bazzocchi

as Brook's Agent Looking After Hallam

Mirella Pamphili

as

Valentino Macchi

as Cunningham's Agent Disguised as a Nurse

Grégoire Aslan

as Shadow

Tom Felleghy

as The Manager of 'Baumkuchen'

Vanni Materassi

as The TV Technician

Fulvio Mingozzi

as Guest at 'Baumkuchen'