Inspektor Richard Martin
Sybil Lansdown (as Sabina Sesselmann)
Kriminalassistent Holms
Dr. Antonio Staletti
Mr. Haveloc
Emely Cody - geb. Cawler
Bertram Cody
Tom Cawler
Giacco
Sir John
Hausmeister Burt
Pheeny
Ansagerin am Flughafen (voice) (uncredited)
Peter Livingston (uncredited)
Ansager am Flughafen / Schaulustiger (uncredited)