He is a stern, serious, and dedicated Marine officer known for his strong sense of justice and unwavering commitment to the law, even if it means going against his superiors. He's often seen smoking two cigars at once and possesses the Moku Moku no Mi devil fruit, which allows him to become and manipulate smoke. Despite his initial antagonism towards pirates, particularly Luffy, Smoker has shown a grudging respect for their strength and a willingness to work with them when their goals align.