Mme. Rosalie La Grange

May Whitty

Acting

Inspector Marney

Lewis Stone

Acting

Nell O'Neill

Madge Evans

Acting

Dick Crosby

Thomas Beck

Acting

Helen Trent

Elissa Landi

Acting

Dr. Mason

Charles Trowbridge

Acting

John Wales

Henry Daniell

Acting

Lady Alissia Crosby

Janet Beecher

Acting

Lionel Trent

Ralph Forbes

Acting

Mary Eastwood

Heather Thatcher

Acting

Roscoe Crosby

Holmes Herbert

Acting

Stanby

Robert Coote

Acting

Grace Stanby

Elsa Buchanan

Acting

Professor Feringeea

Lal Chand Mehra

Acting

Commissioner Grimshaw (uncredited)

Matthew Boulton

Acting