Kadro (11)
Jack HoltJack Hart aka Quinn
Constance CummingsJulie Arnold
Boris KarloffJim Henderson
Claude KingArnold
Bertha MannNurse Edwards
Edward Van SloanDr. August Steiner / Dr. Alec Munsell / Mr. X
Willard RobertsonCapt. E.J. Hawkes
Thomas E. JacksonAgent Burke
Martha MattoxHotel Ansonia Maid
Jessie ArnoldEastland Hospital Nurse
Harry TenbrookMan in Black / Henchman in Boat