as King Leonidas
as Mr. Watson
as Ted Grover
as Tibor
as Steve Curan
as Russian Officer
as Johnny Barrett
as Ross Gilmore
as Bob Mooney
as Chambers
as Wellington
as Chip
as Ben Miranda (uncredited)
as Dr. Paul M. Chapman
as Stacey Gouge (uncredited)
as Sheriff Hatch
as Johnny Barrett (archive footage) (uncredited)
as Frank Brennan
as Sahm-Ir
as Stephen Tremayne
as Avery Porter
as Clay Elliot
as William Sherwood
as Peter Warren
as Ward Bannister
as Sheriff Dan Trevor
as Doc Holliday
as Frank Weaver
as Sundance Kid
as Marshal
as Roy Bancroft
as Jess Carver
as Lafe Harkness
as Sheriff Matt Kilgore
as Nick Barkley
as Harry Cordel
as Hull
as Hale Connors
as Fly Hoyt
as Jubal
as Kendal's Father
as Sen. Orville
as Silver Cloud
as Lt. John Stickney
as Theodore Roosevelt
as Wiley Bondesen
as Mark Goodwin
as Dr. Ted Dietrich
as Farmer Brown (voice)
as Sam Dixon
as George Noland
as Clay Culhane
as Mike Palmer
as Senator Weyburn
as Dr. Halverson
