Don Porter
Professor Claude Ruppert
Pemeran
Top Billed Cast
Brenda Joyce
June Spenser
Patricia Morison
Eve Ruppert
Milburn Stone
Gerald King
Samuel S. Hinds
Dean Albert Sears
Kathleen Howard
Eddie
Griff Barnett
Dr. George Carey
Charles D. Brown
Inspector Pepper
Ted Hecht
Lane
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Leonard East
Howard