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