Renzo Ozzano

as Sergente

as maggiordomo di casa Colombo

as l'uomo nella camera d'albergo

as Garganese, presidente del manicomio

as Walter A, Thompson

as Bruno Bartocci

as maitre

as Commissario francese

as Santagà's Partner Detective

as Capo-stazione

as L'agente Benson

as Commissario Ferri

as Inspector Fix