According to author Pat Conroy, Lt. Col. Bull Meecham is based entirely on his own father, Donald Conroy, a Marine fighter pilot who referred to himself in the third person as "The Great Santini." Donald Conroy took the nickname from a magician he'd seen as a child. Pat and Donald Conroy were on the set on the day that Robert Duvall and Michael O'Keefe filmed the scene where Bull Meecham bullies and taunts Ben after losing to him in a basketball game. A woman on the set asked Donald Conroy if he and Pat had really played games like that. Donald Conroy replied, "Every day, madam. Every single day." However, the book and movie gave Donald Conroy an opportunity to mend fences with his children, especially Pat. After the novel was published, Donald Conroy would often accompany his son to book signings, and would sign his son's novels with the signature, "Donald Conroy - The Great Santini."