Cast
Warner OlandCharlie Chan
Boris KarloffGravelle
Keye LukeLee Chan
William DemarestSergeant Kelly
Guy UsherInspector Regan
Margaret IrvingMme. Lilli Rochelle
Gregory GayeEnrico Borelli
Nedda HarriganMme. Lucretia Borelli
Frank ConroyMr. Whitely
Charlotte HenryMlle. Kitty
Thomas BeckPhil Childers
Maurice CassMr. Arnold
Tom McGuirePop Morris - Stage Doorman
Marc LawrenceUndetermined Minor Role (uncredited) (unconfirmed)
Joan WoodburyDancer in Opera (uncredited)
