Ηθοποιοί επεισοδίου
David JasonDI Jack Frost
Bruce AlexanderSuperintendent Norman Mullett
John LyonsDS George Toolan
David GoodersonDerek Simpkins
Caroline HarkerHazel Wallace
David McKailDr David McKenzie
Paul MoriartySgt Wells
Shelagh FraserMrs Hinkley
Charles De'AthDC Collier
Billy RiddochHammond
Susannah DoyleDS Liz Maud
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Bill StewartSandy Longford
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Nigel HarrisonD.C.I Peters
Arthur WhitePC Ernie Trigg