Kadro (32)
Hugh SinclairHumphrey Mansfield
Griffith JonesJames Brodie
Francis L. SullivanLeon Poiccard
Frank LawtonJames Terry
Anna LeeAnn Lodge
Alan NapierSir Hamar Ryman M.P.
Basil SydneyFrank Snell
Lydia SherwoodMyra Hastings
Edward ChapmanB.J. Burrell
Athole StewartPolice Commissioner
George MerrittInspector Falmouth
Garry MarshBill GrantEllaline TerrissLady Willoughby
Roland PertweeMr Hastings
Eliot MakehamSimmons
Frederick PiperPickpocket (uncredited)
Henrietta WatsonMrs. Truscott
Jon PertweeRally campaigner (uncredited)Liam GaffneyTaxi driver (uncredited)
Manning Whiley(uncredited)Neal Arden(uncredited)
Basil Radford(uncredited)
Edward Rigby(uncredited)Paul Sheridan(uncredited)
Winston ChurchillSelf (archive footage) (uncredited)
Arthur HamblingConstable Benham
Bryan HerbertTaxi driver (uncredited)
Adolf HitlerSelf (archive footage) (uncredited)James KnightPoliceman Outside Parliament (uncredited)Percy ParsonsAmerican Broadcaster (uncredited)
Charles PatonPlatform Speaker (uncredited)Percy WalshPrison Governor (uncredited)