K - The Unknown

John Roche as Dr. Max Wilson Myrtle Vane as Aunt Harriett Kennedy William A. Carroll as Dr. Ed Wilson Virginia Valli as Sidney Page - a beautiful nurse Percy Marmont as 'K' Le Moyne Margarita Fischer as Charlotte Harrison Donald Keith as George 'Slim' Benson

Harry A. Pollard Director Mary Roberts Rinehart Novel Hope Loring Writer