𝐊𝐚𝐤𝐮

Kaku is a young man, who has big black eyes with 3 eyelashes on top of his eye, and a long nose similar to Usopp's, only rectangular in shape. Due to this, several characters, such as Luffy, Sanji and Zoro have mistaken him for Usopp

Kaku is a highly skilled and creative combatant, as despite having no previous experience with a Devil Fruit, he managed to hold off Roronoa Zoro largely by making up techniques on the spot, such as folding himself into a cube,[31] using his nose as a battering ram, or using his neck as a Rankyaku medium.[32] A highly intelligent and cunning individual, Kaku was able able to become a master shipwright within a 5-year period merely as a form of espionage and surveillance over his "boss" Iceburg. He is also skilled at developing or masquerading with personalities: ranging from fun-loving and almost childish to cold and ruthless (the former seems to be his true mentality, while the latter is a product of his assassin occupationn

From his training as a Rokushiki master, Kaku has worked hard to develop his tremendous physical power since childhood and could match the formidable Roronoa Zoro in terms of strength. He has incredible speed and agility, being able to move extremely fast and leap from buildings from amazing heights and distances without a scratch, showing extraordinary leg strength. His jumping abilities earned him the nickname "Mountain Wind" (山風, Yamakaze?) during his time in the Galley-La Company.[8]

Out of all the current member of his group of Cipher Pol agents, Kaku could be best described as the most "normal". While not on a mission and in casual company he's the most affable and social of his colleagues
Kaku has a childish side to himself as well