크레딧 출연 Jim Davis Joseph Cummins Ian Keith FBI Director Sinclair George Travell Rucca Frederick Worlock Hugo Stregel Stanley Andrews Mitchell (uncredited) Hugh Beaumont FBI Chemist (uncredited) Ralph Dunn Vic, Stregel's Thug (uncredited) Byron Foulger Pelly, Stregel's Henchman (uncredited) Ian Wolfe Gruning, Stregel's Henchman (uncredited) 스텝 Buddy Adler Writing Buddy Adler Writing Julian Harmon Writing Julian Harmon Writing Basil Wrangell Directing