May Whitty

Mme. Rosalie La Grange

Lewis Stone

Inspector Marney

Madge Evans

Nell O'Neill

Thomas Beck

Dick Crosby

Elissa Landi

Helen Trent

Charles Trowbridge

Dr. Mason

Henry Daniell

John Wales

Janet Beecher

Lady Alissia Crosby

Ralph Forbes

Lionel Trent

Heather Thatcher

Mary Eastwood

Holmes Herbert

Roscoe Crosby

Robert Coote

Stanby

Elsa Buchanan

Grace Stanby

Lal Chand Mehra

Professor Feringeea

Matthew Boulton

Commissioner Grimshaw (uncredited)

Bayard Veiller

Theatre Play

Marion Parsonnet

Screenplay

George B. Seitz

Director

Charles G. Clarke

Director of Photography

W. Donn Hayes

Editor

Douglas Shearer

Sound Director