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