Darsteller und CrewVirginia PearsonJanet ThornwallLeRoy MasonFrank ProctorEthan LaidlawDetective [Chs. 2-3] / Kosloff Henchman [Ch. 4 onwards] (uncredited)Jack NattefordSchreiber:inSheldon LewisBoris KosloffEddie PhillipsClifford PriceCharles HutchisonLarry Hutchdale / 'Lightning Hutch'Gordon SackvilleHugh ThornwallBen WalkerHenryViolet SchramMarie Bruseff