as Morelli
as Paul Radcliffe
as Jim Laren
as Ringmaster (uncredited)
as Cash Jennings
as Merlin's Chauffeur (uncredited)
as Mine Boss
as Nick Joel
as Sir Bedivere (uncredited)
as Vic Hardy
as Sheriff
as Corporal (uncredited)
as Lieutenant Commander (uncredited)
as Captain of Guard (uncredited)
as Lester Ward
as Sheriff Gilchrist
as Ship's Purser
as Decker - Boss
as Captain (Uncredited)
as Politician (uncredited)
as Police Capt. Reilly
as Captain (uncredited)
as Mounted Cossack Officer
as Fred Mallen
as Red Robert
as Seabee (uncredited)
as Roper - Jeff's First Mate [Chs.1-2, 5-8]
as Stanley Rand
as Swede (uncredited)
as Charles Bentley
as Bruce Carter
as Federal Man
as Syndicate Man (uncredited)
as Henchman Lucky Cramer
as Barrett's Aide
as Sir Lancelot
as Keeler
as RCMP Sergeant Dickson
as Mr. Long
as Patrol Captain
as Gideon Spillet
as Ed Hammond
as Sheriff Jed Hawkins
as Unspecified Saboteur
as Detective
as Roger Bigsby
as Tom Sneed
as Jeff Carson
as Fenton
as Lefty - Henchman [Chs.1-4,7-9]
as Utah Kid
as George Millarde
