 The U.S. Department of Defense provided 300 members of the Utah National Guard to play soldiers in the mass battle scenes filmed.Wolper had the Brigade wear attractive but fictional red berets that appeared as well as on the film's posters and on the tie-in paperback cover of Adelman and Walton's book.The cast of "The Devil's Brigade" included NFL running back Paul Hornung and World Middleweight Champion boxer Gene Fullmer in minor roles.