 John WayneChance Buckman | Chance Buckman |
 Katharine RossTish Buckman | Tish Buckman |
 Jim HuttonGreg Parker | Greg Parker |
 Vera MilesMadelyn Buckman | Madelyn Buckman |
 Jay C. FlippenJack Lomax | Jack Lomax |
 Bruce CabotJoe Horn | Joe Horn |
 Edward FaulknerGeorge Harris | George Harris |
 Edmund HashimColonel Valdez | Colonel Valdez |
 Barbara StuartIrene Foster | Irene Foster |
 Valentin de VargasAmal Bokru | Amal Bokru |
 Frances FongMadame Loo | Madame Loo |
 Alberto MorinGeneral Lopez | General Lopez |
 Alan CaillouHarry York | Harry York |
 Laraine StephensHelen Meadows | Helen Meadows |
 John AldersonJim Hatch | Jim Hatch |
 Lal Chand MehraDr. Songla | Dr. Songla |
| RRudy DiazZamora | Zamora |
 Bebe LouieGumdrop | Gumdrop |
| CChris ChandlerHouston TV Reporter | Houston TV Reporter |
| WWilliam HardyNot listed | Not listed |
| HHoward FinchEd 'Cal' Calhoun | Ed 'Cal' Calhoun |
| RRichard 'Cactus' PryorChance's Doctor | Chance's Doctor |
 Big John HamiltonLipman | Lipman |
| EElizabeth GermaineNot listed | Not listed |
 Chuck RobersonFirefighter in Plane (uncredited) | Firefighter in Plane (uncredited) |
 John StephensonMr. Chapman (uncredited) | Mr. Chapman (uncredited) |
 Edward ColmansSenor Caldez (uncredited) | Senor Caldez (uncredited) |
 Pedro Gonzalez GonzalezHernando (uncredited) | Hernando (uncredited) |
 Eddie SmithCaddie (uncredited) | Caddie (uncredited) |
| GGeorge HoaglandHotel Guest (uncredited) | Hotel Guest (uncredited) |
