On screen
Cast
12 credited performers
Ralph Byrd
Dick Tracy
Kay Hughes
Gwen Andrews
Smiley Burnette
Mike McGurk
Artwork unavailable
Lee Van Atta
Junior
John Picorri
Moloch
Carleton Young
Gordon Tracy, after
Artwork unavailable
Fred Hamilton
Steve Lockwood
Francis X. Bushman
Chief Clive Anderson
John Dilson
Ellery Brewster [Chs. 1, 12]
Artwork unavailable
Richard Beach
Gordon Tracy, before [Chs. 1, 12]
Byron Foulger
Korvitch [Chs. 1, 12]
Artwork unavailable
Roscoe Gerald
Power Co. Watchman-Thug (uncredited)