"In their third and last teaming, Bill Crane and Doc Williams visit a country estate to investigate threatening letters from the mysterious 'Eye.'"
Preston Foster
as Bill Crane
Frank Jenks
as Doc Williams
Joyce Compton
as Dawn Day aka Minnie Schultz
Kay Linaker
as Carla Rodriguez
E. E. Clive
as Major Barclay
Frances Robinson
as Linda Essex
Raymond Parker
as John Essex (as Ray Parker)
Robert Paige
as Tony Henderson (as Robert Page)
Albert Dekker
as Higgs the Butler
Roland Drew
as Paul Gomez
Crane Whitley
as Detective Slocumbe
Orville Caldwell
as Inspector Wilson
Richard Lane
as Richard Lane
Albert S. Rogell
Director
Edmund L. Hartmann
Screenplay
Jonathan Latimer
Novel
Irving Starr
Producer
Maurice Wright
Editor
George Meehan
Director of Photography