The note
Stay for the details.
A high-signal pick with 1 votes.
Republic Pictures
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Director: Fred C. Brannon
On screen
Cast & crew

Kirk Alyn
Inspector David Worth

Rosemary La Planche
Laura Keith

Roy Barcroft
Spade Gordon

Carol Forman
Nila
J
James Dale
Agent Steve Evans
![Bruce Edwards as Prof. Paul Williams [Chs. 1-6]](https://image.tmdb.org/t/p/w185/dftKmUZ2iAJt2BbedDhWuVYX8cV.jpg)
Bruce Edwards
Prof. Paul Williams [Chs. 1-6]
![James Craven as Prof. James Clayton [Chs. 1, 10-12]](https://image.tmdb.org/t/p/w185/eMCzZg54g1XjleWQJClo1ihM9rQ.jpg)
James Craven
Prof. James Clayton [Chs. 1, 10-12]
D
Dave Anderson
Porter [Ch. 9]
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