Mark Eden

as Donald Baverstock

as Marco Polo (archive footage)

as George Biddle (1 episode)

as Boucher (1 episode)

as Bill (1 episode)

as Larry

as Supt. Wilf Penfield (5 episodes)

as Richard

as Edmund Vibart (1 episode)

as Bernard Tindale (1 episode)

as Mike Stewart (1 episode)

as Ross (1 episode)

as Ken (1 episode)

as Quartus (4 episodes)

as St John Peter (1 episode)

as Spencer (13 episodes)

as Det. Insp. Parker (4 episodes)

as Chief Inspector Parker

as John Young

as Morcant (1 episode)

as Douglas Blandford (1 episode)

as Charles

as Peter Royal (1 episode)