Columbia's 33rd serial (made between "Jack Armstrong" and "The Sea Hound") was based on the character that first appeared in "Action Comics" No. 42.
Director
Writers
Arthur Hoerl, George H. Plympton, Lewis Clay
Greg Sanders / The Vigilante
Betty Winslow
George Pierce
Stuff
Prince Hamil
Police Capt. Reilly
Silver / X-2
Doc / X-3
Thorne, a.k.a. X-9 [Chs.9-11,14-15] (as Bill Brauer)