Acting (George Millarde)

Acting (Mounted Cossack Officer)

Acting (Gideon Spillet)

Acting (Lefty - Henchman [Chs.1-4,7-9])

Acting (Roger Bigsby)

Acting (Roper - Jeff's First Mate [Chs.1-2, 5-8])

Acting (Jeff Carson)

Acting (Captain (uncredited))

Acting (Syndicate Man (uncredited))

Acting (Sir Lancelot)

Acting (Jim Laren)

Acting (Sir Bedivere (uncredited))

Acting (Paul Radcliffe)

Acting (Morelli)

Acting (Fenton)

Acting (RCMP Sergeant Dickson)

Acting (Ringmaster (uncredited))

Acting (Decker - Boss)

Acting (Stanley Rand)

Acting (Police Capt. Reilly)

Acting (Vic Hardy)

Acting (Tom Sneed)

Acting (Captain of Guard (uncredited))

Acting (Red Robert)

Acting (Swede (uncredited))

Acting (Keeler)

Acting (Mr. Long)

Acting (Lester Ward)

Acting (Fred Mallen)

Acting (Guard (uncredited))

Acting (Nick Joel)

Acting (Detective)

Acting (Bruce Carter)

Acting (Ed Hammond)

Acting (Henchman Lucky Cramer)

Acting (Sheriff Jed Hawkins)