Edgar Lustgarten

Presenter

Russell Napier

Inspector Duggan

Vernon Greeves

Sergeant

Carl Jaffe

Nicholls

Sylvia Marriott

Janet Nicholls

Roger Delgado

Commissario

Dino Galvani

Director of Cellini Gallery in Rome

Alec Finter

Doctor Harding

Joan Cross

Maid (Nancy Morgan)