Characters played by Ilona Massey
Maria Sorenson
Characters played by Jon Hall
Frank Raymond
Characters played by Peter Lorre
Baron Ikito
Characters played by Cedric Hardwicke
Conrad Stauffer
Characters played by J. Edward Bromberg
Karl Heiser
Characters played by Albert Bassermann
Arnold Schmidt
Characters played by John Litel
John Gardiner
Characters played by Holmes Herbert
Sir Alfred Spencer
Characters played by Keye Luke
Surgeon