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.
Ralph Byrd
as Greg Sanders / The Vigilante
Ramsay Ames
as Betty Winslow
Lyle Talbot
as George Pierce
George Offerman, Jr.
as Stuff
Robert Barron
as Prince Hamil
Hugh Prosser
as Police Capt. Reilly
Jack Ingram
as Silver / X-2
Eddie Parker
as Doc / X-3
Tiny Brauer
as Thorne, a.k.a. X-9 [Chs.9-11,14-15] (as Bill Brauer)
