Kadro (16)
Robert LivingstonDr. Lawrence Baxter
Grace BradleyJean Sterling
Willard RobertsonInspector 'Mac' McDonald
Pierre WatkinKennedy
Smiley BurnetteJimmy
Granville BatesProf. Rexford Sterling
William NewellAndrews
Byron FoulgerPete Andorka
Wilbur MackF. J. Thompson
Matty FainBurke
Josephine WhittellNurse NelsonCharles TimblinSwainBilly GriffithKellogg
William HopperAnnouncerFrank Du FraneGolden
Mary RussellNurse (uncredited)