Casts
Richard Carlson
as Dr. Geoffrey Burton
Nancy Kelly
as Pat Lindsay
Albert Bassermann
as Dr. Storm
Miles Mander
as Professor Langer
Edward Gargan
as Officer Charlie Prescott
Adrian Morris
as Officer John Prescott
Martin Kosleck
as George Taylor
Walter Kingsford
as Heydt
Cy Kendall
as Dahlig
Nestor Paiva
as Grube
