Kadro (13)
Patrick BarrDet. Insp. Alan Wembury
Alexander KnoxDr Anthony Lomond
Wilfrid LawsonMaurice Meister
Sonnie HaleSamuel Cuthbert 'Sam' Hackett
Louise HenryCora Ann Milton
John LongdenInspector Bliss
Patricia RocMary LenleyPeter CroftJohn Lenley
Arthur HamblingDet. Sgt. Richards
George MerrittPolice Station Sergeant
John TurnbullPrison Governor
Charles EatonCol. WalfordCameron HallDrunken Scotsman (uncredited)