Henry Silva as Duke

Luigi Casellato as Carlo 'Charlie' Sardi

Riccardo Salvino as Hans Liedholm

Ezio Sancrotti as Captain Simon Schultz

Franco Giornelli as John McHarding

Vittorio André as Prof. Schwartz

Katia Christine as Kristy

Marco Guglielmi as Captain Kreuz

Renato De Carmine as Major Horst

Pietro Martellanza as Sam the Brit

Maria Cristina Farnese as

Paolo Magalotti as Tall bearded OSS officer

Fulvio Mingozzi as British intelligence officer

Marco Bogliani as