Hamilton Cleek, The Man of the Forty Faces and once known to the Police as "The Vanishing Cracksman," now the great Detective in his various disguises as Monsieur Georges de Lesparre, Philip Barch, George Headland.
Superintendent Narkom, of Scotland Yard.
Lennard, his chauffeur.
Hammond} Detective Sergeants.
Petrie }
Mellish, Police Officer.
Dollops, Cleek's trusted assistant.
Lord St. Ulmer, the father of
Lady Katherine Fordham, who is in love with
Geoffrey Clavering, the only son and heir of