John Stacy

as Prof. Grabowski

as Zookeeper #1

as Professor Chesi

as il portiere dell'albergo

as Concierge

as banchiere

as Hotel Doorman in Paris

as Herbert Peters (4 episodes)

as Senator Acesio

as American Consul (uncredited)

as Il Lord (3 episodes)

as Lord Chamberlain

as Don Alfredo

as Prof. Henry Wassermann

as Innkeeper (uncredited)

as Silvane (uncredited)

as Bill Stryker

as Zio di De Espinosa

as Dr.Andrews (1 episode)

as Colonel Webb

as Porter (uncredited)

as British General

as Surgeon (uncredited)

as ufficiale americano

as Sam Taylor (uncredited)