Dr. Cyclops

Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.

• Malcolm Stuart BoylanScreenplay
• Gerard CarbonaraOriginal Music Composer
• Tom KilpatrickScreenplay
• Ernest B. SchoedsackDirector
• Ernst TochOriginal Music Composer
• Albert Hay MalotteOriginal Music Composer

• Albert DekkerDr. Alexander Thorkel
• Thomas ColeyBill Stockton
• Janice LoganDr. Mary Robinson
• Charles HaltonDr. Rupert Bulfinch
• Victor KilianSteve Baker
• Frank YaconelliPedro
• Paul FixDr. Mendoza
• Frank ReicherProf. Kendall
• Jane WebbWoman (uncredited)
• Billy WilkersonSilent Indian (uncredited)