Tab Hunter always felt that this was one of his best films because it allowed him to show that he was a talented actor and not just a pretty face. He was also able to use the superb horsemanship he had developed over many years of riding, jumping and working with horses, both recreationally and in competitions.
Tab Hunter and James Darren were considered miscast as brothers.
The sorrel horse that Tab Hunter rides in most of the scenes was his own personal horse named Swizzle Stick ("Swiz").
Gunman's Walk is notable for being one of the few films in which the blond, blue-eyed, square-jawed Tab Hunter was cast as a brooding, violent and generally unlikable character.