The Dark Stairway

Hugh Williams

Dr. Thurlow

Chili Bouchier

Betty Trimmer

Garry Marsh

Dr. Mortimer

Reginald Purdell

Askew

James Stephenson

Inspector Clarke

Glen Alyn

Isabel Simmonds

John Carol

Merridew

Lesley Brook

Mary Cresswell

Robert Rendel

Dr. Fletcher

Aubrey Pollock

Dr. Cresswell

Elsa Buchanan

Syd Crossley

Katie Johnson

Ross Landon

Muriel Pope

Ivy Tresmand

Brock Williams

Screenplay

Arthur B. Woods

Director

Irving Asher

Producer

Basil Woon

Screenplay

Mignon G. Eberhart

Novel

Robert LaPresle

Director of Photography