Mark Cambridge, a reporter
Pardee Officer
Sheriff Cal
Curt Warren
Holman
Officer at Police Station (uncredited)
Steve - Border Inspection Officer
Jim Garry
Marshal Jim Hackett
Policeman (uncredited)
Randolph
Henchman Mike
'Rocky' Steuber
Dr. Boulting - Mitchell's Assistant
Ralph Carruthers
Jim Tullett
M.P. Captain at Barnhardt's
Burt Winslow
Sam Dawson
Bill Grant
Ed Hooper
Scheller
Hank
Wade Shelton
Jim Williams
Burt Winslow
Henchman Earl [Chs. 7-15]
Deputy Jack Thorpe
Cal Saunders
Courier
Burt Larsen
Kirk Wheeler - Henchman
Sheriff Towey[Chs. 1-2, 5-6, 11]
Henchman Ed
The Dude
Agent Burke
Lieutenant Trent
Football Playing Student
Jim Shannon
House Peters
Reporter
Racetrack Spectator
