|Romanized Name:||Shī-Pī Zero|
|First Appearance:||Chapter 705; Episode 635|
CP-0, more properly known as Cipher Pol Aigis Zero (サイファーポール"イージス"ゼロ Saifā Pōru Ījisu Zero?) is the strongest intelligence organization among Cipher Pol, according to Nico Robin. They first appeared on Dressrosa near the bridge to Green Bit.
So far three members have been shown, each wearing white suits with dark ties and tribal masks. All members appear abnormally tall, towering over the ordinary citizens of Dressrosa.
The shortest one wears a white bowler hat, a dark purple and blue polka dotted scarf, a white long coat, and what looks like an dark blue, light yellow-gold, red award ribbon on his blazer. He wears his tie loosely. He has a flat face with a thin mustache and beard, a scar under his light-colored right eye, and markings under his pure black left eye. What appears to be a mask seems more likely to be white make-up, as his mouth was moving while he addressed the people.
The one of middle height wears a vertically striped red and white hat and a white coat with a frilly rim. His mask has a light yellow flowery beard, a thin dark blue smile, all white-colored eyes, and two blue vertical lines going down the right side. He also appears to be a member of the Longarm Tribe, due to the positioning of the arms compared to his body size.
The tallest one has a brush-like aqua blue-colored beard. He wears a white long robe and a white beaded necklace with a light blue bead in the middle. His mask is angry looking with wild black-colored hair.
CP-0 is the strongest of all Cipher Pol units, including the assassination specialists, CP9. It is said that nothing good can come from this group's presence. They work directly under the command of the World Nobles. Their power is so great in fact, that their mere presence was enough to utterly terrify even Nico Robin, Usopp, the then Shichibukai Trafalgar Law, and Caesar Clown, all at the exact same time.
When word of Doflamingo's supposed abdication of his throne and Shichibukai position reached the citizens of Dressrosa, Doflamingo called CP-0 to come and clear up the confusion. When they arrived, they told the people that the article printed in the newspaper was a mistake. They went on to explain that a new, amended report would be released at 3 p.m. that day. Finally, they asked the citizens to not discuss the rumors until the truth was released and to conduct usual activities as if nothing had happened.
Sometime after Trafalgar Law and the Straw Hats arrived at Dressrosa, the three agents walked by a northeastern café where they were seen by Law, Usopp, Robin, and Caesar Clown.
Doflamingo revealed to Law that that he was granted authority to command CP-0 because he holds secret information about Mariejois' 'national treasure', which will shake the world if its existence is revealed to the public. 
- The "Aigis" in "Cipher Pol Aigis Zero" may be derived from the Aegis, a mythological shield associated with Zeus and Athena shown as a short goatskin cloak. Athena's aegis is usually shown with a border of snakes and with the head of Medusa in the center. It is more an emblem of protection and power than an actual military shield.
- ↑ 1.0 1.1 1.2 1.3 One Piece Manga and Anime — Vol. 71 Chapter 705 and Episode 635, CP-0 is introduced.
- ↑ 2.0 2.1 One Piece Manga and Anime — Vol. 72 Chapter 712 and Episode 642, three members of CP-0 arrive at Dressrosa to inform the populace that the report of Doflamingo's resignation was a mistake.
- ↑ One Piece Manga — Chapter 761, Doflamingo explains why CP-0 helped him.