Villain Overview
Don't underestimate the full destructive power of giraffes!
~ Kaku

Kaku is first seen as one of the five foremen of Galley-La Company's Dock One and specializes in mechanics diagnostics and house-calls. It was Kaku that inspected the Going Merry and informed the Straw Hats that it was broken beyond repair. Later on it is revealed that Kaku is a member of CP9 operating undercover in order to obtain the Pluton blueprints from Iceburg.

He is voiced by Ryōtarō Okiayu in the Japanese dubbed version of the anime, and Alex Organ in the English dubbed version.


Despite his role as a villain, Kaku is surprisingly honest even to his enemies and even more so than Fukuro though he doesn't seem to take insults well. As soon as his hybrid (giraffe/human) form was mocked, he sliced the Tower of Justice in half in a fit of embarrassed rage.

He also talks like an old man, as remarked by several characters, despite being only 23 years old.

After being revealed as one of the Water 7 CP9 agents, Kaku's personality becomes rather cold and dispassionate in contrast to his character on Water 7, where he was mainly seen laughing and smiling. Despite this, he often taunts his opponents during battle, ate a Devil Fruit for the fun of it, and exclaimed "This is fun!" during his life-and-death battle with Zoro. He also seems to place a chance to fight over easy accomplishment of a mission; when Zoro and Sogeking were cuffed together, he wished to help them, so he wouldn't be forced to share his target with Jabra. When neither agent had the key, both agreed that the prey was up for grabs. As Kaku speaks like he is older than he truly is, he uses the term "washi" (meaning "I", though used mainly by elders), rather than "ore" (also meaning "I", a masculine term used by young adults).

Kaku showed great sportsmanship after his defeat where he laughed at Zoro's comment of working in a zoo. It's led to believe that he is not as cold-hearted or evil as he appears, as he remarked "too bad" when Zoro passed Paulie's message of "you're fired", handed over his key without Zoro having to say a word, and showed apparent regret towards the carefree life in Water 7 he had left behind.


CP9's Secret Mission

Kaku as a Shipwright

Kaku as a Shipwright

Five years before the current events, four members of the secret organization CP9 took guises in the city of Water 7. Kaku as part of his mission infiltrated Galley-La Company by applying for a job as a shipwright, in the attempt to retrieve the blueprints for Pluton from Iceburg, mayor and former pupil of legendary shipwright, Tom. Kaku became infamous in the Galley-La Company, known notably for jumping off tall areas, clearing massive distances, earning the nickname: Yamakaze (山風, "Mountain Wind") and a respected member of the group. He gained the identity of a ship mechanic and diagnostic. Two other members Rob Lucci and Kalifa became a treenail specialist and personal secretary respectively, while the last member Blueno became a bartender. While gaining the city's trust and respect, they tried to get close enough to take the Pluton blueprints in Iceburg's possession. Unknown to them, a year later, Iceburg had passed the blueprints to Tom's other pupil: Cutty Flam, better known as Franky.

CP9 Retrieval

Kaku bears bad news to Luffy and Nami. When the Straw Hat Pirates arrived in Water 7, they needed repairs to their ship. However, due to a tipping off from Admiral Aokiji, a convenience in the form of "Demon Child" Nico Robin presented itself, and they blackmailed her to give a fake assassination attempt on Iceburg's life to frame the Straw Hats, and leave them to be taken to Enies Lobby, under the threat of a Buster Call attack. Meanwhile, the Straw Hats themselves pleaded for Galley-La Company to fix the Going Merry. When Iceburg asked Kaku to perform a diagnostic on the ship, Kaku confirmed that the ship is irreparable due to a broken keel and will sink in their travel to the next island.

However, at nighttime, an "attempt" on Iceburg's life, frames the Straw-Hats, with Galley-La company attacking them in the middle of a battle between Luffy and Franky, the next morning. During the fight Franky called Kaku Yamazaru ("Mountain Monkey") to mock him. At the evening, this time, the Water 7 CP9 group planned to steal the Pluton blueprints and invaded Iceburg's mansion. The four wore disguises, Kaku and Lucci pretending they were defeated by the assailants by using one of the defeated foremen to wear their gear. However, they realized that the blueprints were not with Iceburg, but learned there were with Franky by reading his pulse, when Lucci deduced he was Cutty Flam and one of Tom's pupils. After this, they left and to leave no evidence to their attack and their identities, they set Iceburg's mansion on fire, hoping to kill him in it. However, in the last minute, Iceburg and the Galley-La foremen were saved by Chopper. However, this was no major setback as CP9 had Nico Robin and know Franky's possible whereabouts.

After discovering Franky's secret hideout, Kaku sent the Going Merry into the midst of the Aqua Laguna and to its apparent demise, further reiterating that although his Water 7 guise was false, his analysis was genuine and the ship cannot sail. After capturing Franky and Usopp, they set out for Enies Lobby on the Puffing Tom.

CP9 vs. Straw Hats

Kaku Giraffe

"Tall just like a giraffe."

Kaku facing off against Zoro in the Tower of Justice. Returning to Enies Lobby after five years, he and Kalifa were given Devil Fruits by Spandam and under the urging of Lucci, ate them. Although he was initially going to face off with Zoro, he ended up causing the floor to cave in by transforming into his full giraffe form instead of his half-giraffe form. The two fell into the room where Sogeking and Jyabura were fighting, and were involved in that fight as well. Jyabura started to break out in uncontrollable laughter after seeing Kaku's full giraffe form. Kaku manages to transform into his half-giraffe form, but this only makes Jyabura laugh more hysterically and makes Sogeking accidental handcuff Zoro and him together. All this mocking eventually gets to Kaku and, in anger, he uses an attack that slices the tower in half where it remains lopsided for the reminder of the arc. After a bit of arguing with Jyabura on whose prey is whose, the two agreed to work together to defeat the pirates and escape the oncoming Buster Call. Zoro however managed to hold them at bay by using Usopp as a sword (moreover having Usopp hold one of his swords while he uses Usopp like a hilt) until Nami frees them of their handcuffs.
Kaku Hybrid Form

Kaku's hybrid form.

As Zoro and Kaku continued their one on one match, it seemed Kaku had the upper hand thanks to improvising with his devil fruit and his swordplay until he was defeated by Zoro activating a new power called Asura. Beaten but honorable, he gives Zoro his key before he passes out. It should be noted that Kaku held the important key to unlocking Robin's handcuffs.

CP9's Independent Report

He appears on the third cover in the report, sitting, and apparently severely injured, having been carried by Jyabura along the Sea Train tracks. He had arrived at St. Poplar and is shown pretending to be a "giraffe slide" while in his full giraffe form for children to ride, in an effort to help CP9 raise money for Rob Lucci's medical bills. Afterwards, he was at a café with Fukurou, Blueno, and Jyabura waiting for Kalifa and Kumadori to return with the shopping, he along with Fukurou is laughing at Jyabura. Later, he is seen as the scorekeeper while the others are bowling. However, their bowling match is interfered when the Candy Pirates ransack the island, so he and the rest of CP9 quickly dispatch them on their ship. Kaku was shown fly-kicking one of the pirates as the crowds cheered. However, since Lucci crushed the skull of the captain, the crowd was horrified and CP9 realized they can't stay in St. Poplar, so they shipped off to their homeland, where they watch a new generation of CP9 being trained. Captain Very Good arrives to capture them, but they refuse to let him disturb their old home.

As CP9 battled, and eventually defeated the Marine troops led by Very Good, Lucci contacted a physically crippled Spandam using a Den Den Mushi, and promised to come for him very soon. With that CP9 began their aim to eliminate their former director by leaving their homeland and setting sail.

Dressrosa Arc

When CP-0 came to Dressrosa a second time, Rob Lucci talked to Kaku who was in the underground of the island, investigating the Revolutionary Army exploits.

Screenshot 2019-08-27-15-43-07
Reverie Arc

As Charlos tried to enslave Shirahoshi, Sai and Leo tried to stop him, only to be thrown back by Lucci. Kaku was there along with several other CP-0 members, explaining the rights of the World Nobles.


           One piece logo by zerocustom1989 d1dghop-pre Villains

World Government
Im | Five Elders

Celestial Dragons
Saint Charloss | Saint Rosward | Saint Shalulia | Saint Jalmack | Donquixote Doflamingo

Cipher Pol
Chief: Spandam
Assasins: Rob Lucci | Kaku | Kalifa | Blueno | Jabra | Kumadori | Fukuro | Nero
Agents: Rob Lucci | Spandam | Stussy | Kaku

Fleet Admiral: Akainu
Admirals: Aokiji | Kizaru | Sengoku
Officers: Zephyr | Vergo | Captain Morgan
Seven Warlords of the Sea
Sir Crocodile | Donquixote Doflamingo | Gekko Moriah | Bartholomew Kuma | Buggy "the Clown" | Edward Weevil | "Blackbeard" Marshall D. Teach

Impel Down Staff
Magellan | Shiliew | Blue Gorilla | Minotaurus | Minokoala | Minorhinoceros | Minozebra | Minochihuahua

Four Emperors
Kaido "of the Beasts" | "Big Mom" Charlotte Linlin | "Blackbeard" Marshall D. Teach

East Blue Pirate Crews
Buggy Pirates
Buggy "the Clown" | Mohji | Cabaji | Richie | Alvida | Galdino

Black Cat Pirates
Captain: Kuro "of a Hundred Plans"
Others: Jango | Sham & Buchi

Krieg Pirates
Don Krieg | Gin | Pearl

Arlong Pirates
Arlong "the Saw" | Chew | Kuroobi | Hatchan | Pisaro | Kaneshiro | Take | Shioyaki

Paradise Pirate Crews
Foxy Pirates
Foxy "the Silver Fox" | Porche | Hamburg | Itomimizu | Chuchun | Capote | Monda | Pickles | Big Pan | Referee | Gina

Thriller Bark Pirates (Mysterious Four)
Gekko Moriah | Hogback | Absalom | Perona

Macro Pirates
Macro | Gyaro | Tansui

Caribou Pirates
Caribou | Coribou

New Fishman Pirates
Hody Jones | Dosun | Zeo | Daruma | Ikaros Much | Hyouzou | Hammond | Kasagoba | Harisenbon

Flying Pirates
Vander Decken IX | Wadatsumi

New World Pirate Crews
Donquixote Pirates
Captain: Donquixote Doflamingo
Elite Officers: Trebol | Diamante | Pica | Vergo
Officers: Sugar | Jora | Lao G | Senor Pink | Machvise | Dellinger | Gladius | Buffalo | Baby 5 | Monet
Others: Bellamy | Caesar Clown

Emperors' Crews Beast Pirates
Govenor-General: Kaido "of the Beasts"
All-Stars: King "the Conflagration" | Queen "the Plague" | Jack "the Drought"
Headliners: (Tobiroppo: Page One | Ulti | Who's Who | Black Maria | Sasaki)
(Others: Sheepshead | Ginrummy | Basil Hawkins | Holdem | Speed | Babanuki | Daifugo | Solitaire | Dobon)
Gifters: Batman | Gazelleman | Mouseman | Alpacaman | Madilloman | Rokuro | Snakeman | Rabbitman
Others: Scotch | Scratchmen Apoo | Pleasures | Waiters

Big Mom Pirates
Captain: "Big Mom" Charlotte Linlin
Sweet 3 Generals: "Thousand Arms" Charlotte Cracker | Charlotte Smoothie | Charlotte Katakuri
Officers: Charlotte Perospero | Charlotte Compote | Charlotte Daifuku | Charlotte Oven | "Demon Lady" Charlotte Amande | Charlotte Opera | Charlotte Brûlée | "Scribe" Charlotte Mont-d'Or | Charlotte Pudding | Charlotte Flampe
Combatants: Baron Tamago | "Sweeper" Bobbin

Blackbeard Pirates
Admiral: "Blackbeard" Marshall D. Teach
Ten Titanic Captains: Jesus Burgess | Shiliew "of the Rain" | "The Supersonic" Van Augur | "Corrupt King" Avalo Pizarro | "Demon Sheriff" Laffitte | "Crescent Moon Hunter" Catarina Devon | "Colossal Battleship" Sanjuan Wolf | "Heavy Drinker" Vasco Shot | "Death God" Doc Q

Other Pirate Crews

Golden Lion Pirates
Captain: Shiki the Golden Lion
Others: Dr. Indigo | Scarlet

Kid Pirates
Captain: Eustass Kid | Killer

Rocks Pirates
Captain: Rocks D. Xebec
Others: Kaido of the Beasts | Charlotte Linlin | Shiki the Golden Lion | John

Other Pirates
Alvida | Bellamy | Demaro Black | Drip | Higuma | Mounblutain | Caribou | Capone Bege

Other Groups
Baroque Works
Officer Agents: Mr. 0 | Miss All-Sunday | Mr. 1 | Miss Dounglefinger | Mr. 2 Bon Kurei | Mr. 3 | Mr. 4 | Miss Merry Christmas | Mr. 5 | Miss Valentine
Frontier Agents: Mr. 7 | Miss Father's Day | Miss Monday | Mr. 9 | Mr. 11 | The Unluckies

God's Army
God: Enel
Priests: Ohm | Satori | Shura | Gedatsu
50 Divine Soldiers: Yama | Hotori & Kotori

Franky Family
Franky | Zambai | Square Sisters | Tamagon | Kiev | Schollzo | Kop

Sea Kings
Lord of the Coast | Master of the Waters

Germa 66
Vinsmoke Family
Vinsmoke Judge | Vinsmoke Ichiji | Vinsmoke Niji | Vinsmoke Yonji

Kurozumi Family
Kurozumi Orochi | Kurozumi Higurashi | Kurozumi Kanjuro

Orochi's Army
Kurozumi Orochi
Orochi Oniwabanshu
Captain: Fukurokuju
Others: Daikoku | Fujin | Raijin | Hanzo


Wapol | Duval | Caesar Clown | Smiley | Hakuba

El Drago | Bear King | Hyena Three | Honey Queen | Gasparde | Needless | Noko | Tatsu | Baron Omatsuri | Lilly Carnation | Don Accino | Byrnndi World | Bill | Mad Treasure | Gild Tesoro

Zephyr | Ain | Binz

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