Elenco & Equipe de Horizontes Desconhecidos
Fred MacMurrayCpt. Meriwether Lewis Charlton HestonLt. William Clark Barbara HaleJulia Hancock William DemarestSgt. Gass Eduardo NoriegaChief Cameahwait Herbert HeyesPresident Thomas Jefferson Lester MatthewsMr. Hancock Argentina BrunettiShoshone Woman (uncredited) Julia MontoyaCrow Woman (uncredited) Ralph MoodyChief Le Borgne (uncredited) William PhippsNight Camp Sentry (uncredited) Walter ReedHelmsman Cruzatte (uncredited) Bill WalkerTom (uncredited) Helen WallaceMrs. Martha Hancock (uncredited) Della Gould EmmonsNarrativa William C. ThomasProdutor A. Earl HedrickArt Direction Otto SiegelSet Decoration Daniel L. FappDirector Of Photography William WilliamsSecond Unit Director Of Photography Wally WestmoreMakeup Supervisor Charles C. ColemanSecond Unit Director William McGarryDirector Assistente Gene MerrittSound Recordist Hans J. SalterCompositor de Banda Sonora Original Gene GarvinSound Recordist John P. FultonVisual Effects 
