as Gambler (uncredited)
as Henchman Brannigan
as Croupier
as Construction Worker (uncredited)
as Fred
as Henchman (uncredited)
as Sergeant on Sidewalk (uncredited)
as U.S. Customs Agent Lou Evers
as Capt. Foley
as Office Worker (Uncredited)
as Charlie (Uncredited)
as Sergeant on Sidewalk with Sgt. Collins (uncredited)
as Henchman Ben Bannon
as Asa Morgan
as Barnett
as Jack
as Frank Hanlon
as Murder Victim (Uncredited)
as Wedding Rehearsal Attendant (uncredited)
as Marvin
as Sgt. Gordon (as Kenneth Duncan)
as Sidney Brand
as Nick
as Ram Singh, Wentworth's Hindu Chauffeur
as Henchman Scotty
as Rustler talking with Jackson
as Henchman
as Dr. Chambers [Chs. 1-2, 8]
as The Martian Airfield Captain
as Cal Freeling
as Joe
as Airdrome Captain
as Adams
as Sam Priestly
as Narrator (voice) (uncredited)
as Jess Fowler
as Lt. Lacy
as Henchman Indigo Hubbard
as Car-Rental Clerk
as Man in Bar (uncredited)
as Paul--Deresco Aide
as Crawley (uncredited)
as Tanner
as Michael's Henchman
as Henchman Dick Cantwell
as Al
as Cowboy in Saloon
as Marshal Frank Hammond (as Kenneth Duncan)
as Henchman Crandall
as Sheriff Jeff
as Latigo (uncredited)
as Henchman Two-Gun
as Henchman Durgan (as Ken Duncan)
as Charles Mitchell
as Tom Blaine
as Henchman Bender
as Sheriff Winters
as Ram Singh
as (uncredited)
as Henchman Brownie
as Frank Stevens
as Nat Burdell
as Henchman Turner
as Blackie
as Henchman Steve
as Saloon Henchman
as Karl, aka Dr. Acula
as Dave Brewster
as Hanley
as Dow
as Ranch-Hand Larry
as Ben Brady
as Henchman Hackett
as Michael Bellamy
as Maj. Naylor
as Henderson
as Captain Jim Wallace
as Henchman Pete McAvoy
as Abu
as Tim Reymond
as Chet Adams
as Henchman Felton
as Brazos Kane
as Al Bartlett
as Henchman Bragg
as Henchman Ed Rance (as Kenneth Duncan)
as Lance - Henchman
as Uncle Ben Allen
as Joe Bardet
as Nebraska
as Sam Mantell (as Kenne Duncun)
as Mulie
as Henchman Johnson
as Mcquaid
as Henchman Leathers (as Kenneth Duncan)
as Henchman Adams
as Trigger Chandler
as Henchman Pete Chandler
as Servant
as Plug
as Curly Andrews
as Express Rider
as Geologist McBride
as Henchman Joe
as Henchman Johnny Slade
as Spade - Henchman
as Captain Anders (as Kenneth Duncan)
as Henchman Chuck
as Lafe
as Ross McLain
as Homesteader Clark
as Speed Dennison
as Henchman Jackson
as Deputy Walt
as Sheriff
as Steve Dallas
as Boarder
as Jay Lynch
as Bob Horner
as George Hooker
as Henchman Pete
as Arthur Wilkes - Secretary
as Sheriff Barnes
as Captain Clay
as Whitey - Henchman
as Dr. Paul Dexter
as William Murrell
as Morgan
as Lefty
as Rod
as R. J. Cole (as Ken Duncan)
as Dave Hendricks
as Henchman Gentry [Chs. 7, 11]
as Al Herman
as Snyder
as Blake Hardy (as Kenneth Duncan)
as Bill Mayberry
as Marshal Bob Day (as Ken Duncan)
as Bill Willis
as Henchman Kirk
as Deputy Barrow
as Tom
as Blaine - Henchman
as Rance
as Lt. Matt Carson
as Bart Wallace
as Sheriff Dan Kirk (as Kenneth Duncan)
as J.W. Carlton
as Fred Jones (as Kenneth Duncan)
as Chick Williams
as Henchman Tom
as John Sommerset
as Tom Bancroft
as Clint Scollard
as Self
as Car Salesman
