Universal, 12 Chapters, 1941. Starring Billy Halop, Huntz Hall, William Hall, Stanley Blystone, Reed Hadley, John McGuire, Hally Chester, Gabriel Dell, Bernard Punsly, Mary Field, Marcia Ralston, Edward Keane.
Republic, 12 Chapters, 1941. Starring Tom Tyler, Frank Coghlan Jr., Louise Currie, Billy Benedict, Robert Strange, John Davidson, Harry Worth, George Pembroke, George Lynn, Kenne Duncan, John S. Bagni, Reed Hadley, Bryant Washburn, and Gerald Mohr as the voice of the Scorpion.
Republic, 12 Chapters, 1939. Starring Reed Hadley, William Corson, Sheila Darcy, Leander De Cordova, John Merton, Edmund Cobb, C. Montague Shaw, Jim Pierce, Budd Buster.