Anthony Eisley

Character: Lt. Harry Sennet

Wandisa Guida

Character: Kary

Folco Lulli

Character: Rehte

Diana Lorys

Character: Capt. Patricia Flanagan

Luisa Rivelli

Character: Sylvia White

Francisco Sanz

Character: Prof. Rooney

José María Caffarel

Character: Archie White

Renato Montalbano

Character: Mills of Security Section

Oreste Palella

Character: Chief of Section S

Luciana Petri

Character: Seaplane Hostess