The Florentine Dagger

Frank Reicher

as Von Stein

C. Aubrey Smith

as Gerard Lytton

Charles Lane

as Man in Front Row (archive footage)

Rafaela Ottiano

as Lili Salvatore

Margaret Lindsay

as Florence Ballau

Eily Malyon

as Fredericka

Ruthelma Stevens

as Fraulein von Elsner (uncredited)

William Irving

as Policeman Schultz (uncredited)

Olaf Hytten

as Scotland Yard Radio Operator (uncredited)

Paul Panzer

as Detective (uncredited)