as Officer at Police Station (uncredited)
as M.P. Captain at Barnhardt's
as Policeman (uncredited)
as Jim Tullett
as Pardee Officer
as Deputy Jack Thorpe
as Marshal Jim Hackett
as Henchman Ed
as Dr. Boulting - Mitchell's Assistant
as Henchman Earl [Chs. 7-15]
as Jim Williams
as Passing Soldier - Veteran (uncredited)
as Racetrack Spectator
as Robert Shaw
as 'Rocky' Steuber
as Mark Cambridge, a reporter
as The Dude
as Self (archive footage)
as Curt Warren
as Football Playing Student
as Henry
as Jim Shannon
as Burt Winslow
as Hank
as House Peters
as Scheller
as Detective (uncredited)
as Agent Burke
as Henchman Mike
as Holman
as Steve - Border Inspection Officer
as Jim Garry
as Sheriff Towey[Chs. 1-2, 5-6, 11]
as Hogan (uncredited)
as Sam Dawson
as Reporter
as Sheriff Cal
as Coggins
as Lieutenant Trent
as Ralph Carruthers
as Rod
as Burt Larsen
as Kirk Wheeler - Henchman
as Randolph
as Bill Grant
as Cal Saunders
as Wade Shelton
as Courier
as Ed Hooper
as Policeman
as Plainclothesman
as Police Lt. Jeffers
as Harvey (uncredited)
as Marshal
as Turner
as Nat Swan
as Jake
as Ote Bledsoe
as Frank Parker
