Stewart Rome
Francis Xavier Benedik / Boswell Marsh
John Longden
Anthony Xavier 'Tony' Benedik
Dorothy Boyd
Petronella 'Peter' Rickforth
Charles Paton
Samuel Faraday Rickforth
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Leslie Mitchell
Basil Woolrich
Sybil Grove
Elsa Victoria Fairburn, Benedik's housekeeper
Cecil Clayton
Mr Musgrove, theatre ticket agent
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Fletcher Lightfoot
William Prout, Benedik's butler
Edmund Willard
Captain Inigo 'Glassy' James
Eileen Lamb
Christabel Pagan, Benedik's private secretary