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John Wayne as Colonel John Henry Thomas |
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Rock Hudson as Colonel James Langdon |
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Antonio Aguilar as General Rojas |
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Roman Gabriel as Blue Boy |
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Marian McCargo as Ann |
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Lee Meriwether as Margaret |
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Merlin Olsen as Little George |
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Melissa Newman as Charlotte |
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Bruce Cabot as Jeff Newby |
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Jan-Michael Vincent as Bubba Wilkes |
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Ben Johnson as Short Grub |
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Edward Faulkner as Anderson |
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Harry Carey, Jr. as Webster |
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Paul Fix as General Joe Masters |
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Royal Dano as Major Sanders |
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Richard Mulligan as Dan Morse |
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Carlos Rivas as Diaz |
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John Agar as Christian |
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Guy Raymond as Giles |
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Don Collier as Goodyear |
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Big John Hamilton as Mudlow |
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Dub Taylor as McCartney |
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Henry Beckman as Thad Benedict |
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Víctor Junco as Major Tapia |
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Robert Donner as Judd Mailer |
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Pedro Armendáriz Jr. as Escalante |
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James Dobson as Jamison |
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Rudy Diaz as Sanchez |
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Richard Angarola as Petain |
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James McEachin as Jimmy Collins |
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Gregg Palmer as Parker |
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Juan García as Colonel Gomez |
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Kiel Martin as Union Runner |
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Bob Gravage as Joe Hicks |
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Hal Needham as Yankee Corporal at River Crossing (uncredited) |
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Chuck Roberson as Yankee Sergeant at River (uncredited) |
| Directing | Andrew V. McLaglen | Director |
| Writing | Lewis B. Patten | Novel |
| Writing | Stanley Hough | Story |
| Writing | James Lee Barrett | Screenplay |
| Production | Robert L. Jacks | Producer |
| Sound | Hugo Montenegro | Original Music Composer |
| Editing | Robert L. Simpson | Editor |
| Art | Carl Anderson | Art Direction |
| Crew | Dick Ziker | Stunts |
| Crew | Hal Needham | Stunt Coordinator |
| Crew | Glenn R. Wilder | Stunts |
| Camera | William H. Clothier | Director of Photography |
| Crew | Chuck Roberson | Stunt Double |
| Crew | Gary McLarty | Stunts |
| Crew | Bob Orrison | Stunts |
| Crew | George Robotham | Stunt Double |
| Crew | William H. Burton Sr. | Stunts |
| Crew | Mickey Gilbert | Stunts |
| Crew | Denny Arnold | Stunts |
| Crew | Tap Canutt | Stunts |
| Crew | Roydon Clark | Stunts |
| Crew | John Hudkins | Stunts |
