(in credits order) verified as complete
- Julian M. Deuster(as Julian Michael Deuster)
- Harry Taurasi(as Cesare Taurasi)
- Alexander Ananasso(as Alessandro Ananasso)
- Gabriel Lo Giudice(as Gabriel Farnese)
Rest of cast listed alphabetically
- Lasco Atkins(uncredited)
- Nicolas Bosc(uncredited)
- Alexander Bracq(uncredited)
- Vivien Bridson(uncredited)
- Max Cavenham(uncredited)
- Winston Churchill(archive footage) (uncredited)
- Bern Collaço(uncredited)
- Graham Curry(uncredited)
- Gary Douglas(uncredited)
- Amanda Edwards(uncredited)
- James Henri-Thomas(uncredited)
- Adolf Hitler(archive footage) (uncredited)
- Philip Howard(uncredited)
- John F. Kennedy(archive footage) (uncredited)
- Jefferson King(uncredited)
- Klemens Koehring(voice) (uncredited)
- Jimena Larraguivel(uncredited)
- Jorge Leon(uncredited)
- Hugh O'Brien(uncredited)
- Gino Picciano(uncredited)
- Sam Shoubber(uncredited)
- Ben Wright(uncredited)
