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Memo Benassi
as John Brown, il detective
Leda Gloria
as Anna
Giuditta Rissone
as Alice
Ninì Dinelli
as Clara
Lamberto Picasso
as Fersen
Ernesto Sabbatini
as Ammiraglio Morstan
Mino Doro
as Carlo
Fosco Giachetti
as Raythan
Alexandre Mihalesco
as Jackie
Oreste Fares
as Mister Baskerville
Giovanni Ferrari
as Un autista
Gastone Medin
Production Design
Carlo Montuori
Director of Photography
Mario Bonnard
Screenplay
Editor
Producer
Director
Giulio Bonnard
Music
