Stewart Rome

Francis Xavier Benedik / Boswell Marsh

John Longden

Anthony Xavier 'Tony' Benedik

Dorothy Boyd

Petronella 'Peter' Rickforth

Charles Paton

Samuel Faraday Rickforth

Sybil Grove

Elsa Victoria Fairburn, Benedik's housekeeper

Cecil Clayton

Mr Musgrove, theatre ticket agent

Edmund Willard

Captain Inigo 'Glassy' James

Eileen Lamb

Christabel Pagan, Benedik's private secretary