Callahan is a cold, brooding outlaw forged by a rough upbringing and a strong leader. A man who lives by a moral code of his own, Cal never engages in what he deems unnecessary killing, especially if it puts his loved ones at risk. Callahan is a stoic and humble man, and while Cal is often called an idiot by most, he demonstrates strong self-awareness and maintains a cool demeanor in the riskiest situations. Cal shows a rare, gentle demeanor for children, contrasting his intimidating persona.