AppearanceKizaru is a middle aged man with a moderate amount of wrinkles on his face. He wears a yellow striped suit with a Marine coat draped over it like a cape, his arms not in its sleeves. Kizaru also wears pure white shoes, gold-amber tinted sunglasses, and a tiny Black Den Den Mushi on his left wrist, like a wristwatch. He is very tall and can be estimated to be about the same height as fellow Marine Admiral Aokiji.
The way Kizaru's character design is drawn resembles the famous Japanese actor, Kunie Tanaka.
PersonalityLike Aokiji, Kizaru seems to be very laid-back and easygoing, speaking very slowly and occasionally elongating the last word of his sentences. Even in surprising and unexpected situations, he's apparently never shocked. Even when a pirate fired a gunshot at him, he seemed to be focused only on calling his subordinate, and didn't even mind. He even asked the offenders where his subordinate was. After uprooting a mangrove tree, he laughed to himself that the force he used was a tad excessive. He's also very calm and cool-headed, even in tense situations, such as when Basil Hawkins appeared unharmed by his attack, or when Rayleigh appeared. Unfortunately, he can be quite absent-minded and irresponsible, judged by the fact he used a lot of power in a kick directed at escaping pirates, uprooted an entire mangrove tree, and tried to call Sentoumaru with a black Den Den Mushi, which is only for intercepting communications. He also seems to prefer his original name, Borsalino, rather than his alias, as shown when Sentoumaru called him and he said, "This is Borsalino".
However, more in line with Akainu, he is shown to have a ruthless side: he gives criminals, particularly pirates, very little mercy once he has targeted them. He even planned to capture Silvers Rayleigh, who had given up pirating over twenty years earlier, simply because he was the first mate of the Jolly Roger Pirates. Following the events of the Sabaody Archipelago, Kizaru captured 500 pirates out of spite. Also like Smoker and Sengoku, he sees the Shichibukai as nothing more than pirates, even if they are on the World Government's side.
Kizaru also seems to find some of the abilities of his enemies quite frightening. One instance was when after he witnessed the devil fruit abilities of three of the Supernova, he referred to them as "monsters". Another was after he tried to directly attack Whitebeard, 1st Division Commander, Marco, intercepted his attack with ease which made Kizaru to point out how "scary" the Whitebeard Pirates were. However he still remains calm and never appears to actully be scared or concerned.