Overview
The Invisible Man's grandson uses his secret formula to spy on Nazi Germany.
Cast
- Ilona Massey as Maria Sorenson
- Jon Hall as Frank Raymond
- Peter Lorre as Baron Ikito
- Cedric Hardwicke as Conrad Stauffer
- J. Edward Bromberg as Karl Heiser
- Albert Bassermann as Arnold Schmidt
- John Litel as John Gardiner
- Holmes Herbert as Sir Alfred Spencer
- Keye Luke as Surgeon
- Sven Hugo Borg as German Captain (uncredited)