Lionel Barrymore

Paul Lavond

Maureen O'Sullivan

Lorraine Lavond

Frank Lawton

Toto

Rafaela Ottiano

Malita

Robert Greig

Émile Coulvet

Lucy Beaumont

Madame Lavond

Henry B. Walthall

Marcel

Grace Ford

Lachna

Pedro de Cordoba

Charles Martin

Arthur Hohl

Victor Radin

Juanita Quigley

Marguerite Coulvet

Claire Du Brey

Mathilde Coulvet

Rollo Lloyd

Inspector Maurice

E. Alyn Warren

Préfect of Police

King Baggot

Detective Pierre (uncredited)

Egon Brecher

Detective (uncredited)

Christian J. Frank

Detective (uncredited)

Billy Gilbert

Matin's Butler (uncredited)

Robert Graves

Gendarme (uncredited)

Mahlon Hamilton

Detective (uncredited)

Sydney Jarvis

Gendarme (uncredited)

Edward Keane

Gendarme (uncredited)

Gus Leonard

Eiffel Tower Elevator Operator (uncredited)

Wilfred Lucas

Off-Screen Voice (voice / uncredited)

Eily Malyon

Laundry Supervisor (uncredited)

Frank Reicher

Doctor (uncredited)

Evelyn Selbie

Flower Woman (uncredited)