The Thirteenth Chair

May Whitty

Mrs O'Neill aka Madame Rosalie la Grange

Madge Evans

Helen "Nell" O'Neill

Lewis Stone

Inspector Marney

Elissa Landi

Helen Trent

Thomas Beck

Dick Crosby

Henry Daniell

John Wales

Janet Beecher

Lady Alicia Crosby

Ralph Forbes

Major Lionel Trent

Holmes Herbert

Governor Sir Roscoe Crosby

Heather Thatcher

Mary Eastwood

Charles Trowbridge

Dr Mason

Robert Coote

Stanby

Elsa Buchanan

Grace Stanby

Lal Chand Mehra

Professor Feringeea

Neil Fitzgerald

Constable

Louis Vincenot

Chotee

Matthew Boulton

Grimshaw (uncredited)

W. Donn Hayes

Editor

Douglas Shearer

Sound Director

Marion Parsonnet

Screenplay

Charles G. Clarke

Director of Photography

George B. Seitz

Director

Bayard Veiller

Theatre Play