Featured Cast of :
Peter Lorre(as Professor Karl Fenninger)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Peter Lorre
(as Professor Karl Fenning...)
Boris Karloff(as Judge Spencer Mainwaring)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Boris Karloff
(as Judge Spencer Mainwari...)
Béla Lugosi(as Prince Saliano)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Béla Lugosi
(as Prince Saliano)
Helen Parrish(as Janis Bellacrest)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Helen Parrish
(as Janis Bellacrest)
Dennis O'Keefe(as Chuck Deems)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Dennis O'Keefe
(as Chuck Deems)
Ginny Simms(as Ginny Simms)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
Ginny Simms
(as Ginny Simms)
Leonard Mudie(as The Real Karl Fenninger)
You'll Find Out
Released
1940
You'll Find Out
Released
1940
