Ηθοποιοί επεισοδίου
Bill PatersonSir Arthur Conan Doyle
Άννα Μάξγουελ ΜάρτινAgatha Christie
Mark BonnarBilly
Adrian ScarboroughChief Inspector Danders
Rosie CavalieroDorothy L Sayers
Nick MohammedHorace Lambardi
Celeste DodwellNancy Neele
Hugh ColesJunior Police Officer
Tor ClarkAngela the Receptionist
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Rupert CrossPianist
David BoyleJournalist
Robert James-CollierCol. Archie Christie