The Mysterious Mr. Tiller

Ruth Clifford

Clara Hawthorne

鲁珀特·朱利安

Prentice Tiller

Frank Brownlee

Ramon Mordant

Wedgwood Nowell

Stephen Pitt (as Wedgewood Nowell)

Harry L. Rattenberry

O'Meara (as Harry Rattenberry)

E. Alyn Warren

Rosario (as E.A. Warren)

Lloyd Whitlock

Banning

William Higby

Chief Detective