Philip

"Beginning the lookup..."

- Philip's words before entering the Gaia Library

Raito Sonozaki (園咲 来人), or by his adopted name, Philip (フィリップ) is the right sided-half of Kamen Rider Double. He is a mysterious young man who works as Shotaro Hidari's partner after he and Detective Narumi save him from an experiment conducted by the Sonozaki Family. Being an avatar to the true Gaia Memory, he has full access to the Gaia Library, which he often interfaces with to look up for information on Dopants, and has computational capabilities comparable to that of a. He fights Dopants with Shotaro, projecting his mind into Shotaro's body to form the right half of Kamen Rider Double. Philip represents the mind of Double.

History
He is a mysterious young man who possesses the true Gaia Memory (地球の記憶). His real name is Raito Sonozaki, the third-born child and sole son of Ryubee, whose mind was altered by Satoshi Yamashiro under his father's wishes to have no memory of his name and family. It is also revealed to him that Raito actually died twelve years ago in a freak accident falling into a well connecting to the true Gaia Memory, but he was somehow revived as an avatar almost instantaneously. After being rescued by Shotaro and Sokichi Narumi from a mysterious organization, Philip helps investigate Dopant activity through his ability to access the Gaia Library (地球（ほし）の本棚), a collection of all of the information in the known world. However, due to having no memory of his life before being rescued and the need to keep his location secret from the people Shotaro rescued him from, he usually spends his time in the Detective Agency's secret hangar, reading about common topics that he finds interesting. He fights the Dopants with Shotaro as the mind and soul of Kamen Rider Double, providing the Gaia Memories for the right side of Double.

After being thrown into the Gaia Memory for the Gaia Impact and extracted from ClayDoll Xtreme, Philip's body became unstable to the point that should he transform into Kamen Rider Double, again, he would break up into data and completely be absorbed by the planet. Saving their final transformation to save Wakana and fight the Utopia Dopant, Jun Kazu, Philip has Shotaro promise to him that he will still fight for Fuuto even if he is gone. After Kazu is defeated, Philip bids his final farewell to Shotaro as he fades away once the transformation is ended. Before he left, Philip left Shotaro a gift containing a Lost Driver belt and the blank book he used to access the Gaia Library containing a message thanking Shotaro and asking him to continue to protect Futo. A few days later, after being rescued by Shotaro and Philip, Wakana learns that Philip sacrificed his own physical existence to save her and initiates her own Gaia Impact to bring back the Xtreme Memory which slowly reconstructs Philip's physical body which took a year. After being revived, Philip has one last moment with his family who tell him that they will be watching over him. He then spent the next year, waiting for his body to restore and watched over Shotaro within the Xtreme Memory. Upon returning to physical form, he continues to protect the city of Futo as Kamen Rider Double.

Kamen Rider Travelers Record
Philip appears in the video game Kamen Rider Travelers Record.

Personality
At first, Philip was shown to be completely devoid of interest in human relationships, even calling himself  'a little devil'. Being extremely intelligent, he is mostly apathetic and shows interest only in common topics he finds interesting which he reads occasionally, sometimes even turning into an obsession that overwhelms him until he knows everything about that subject, often getting in the way of ongoing investigations. At times, he would even go to extremes where he would work himself out until he collapses, such as when he was reading on weight-loss, and getting himself very fat after getting obsessed with Mochi, a type of rice cake. After finding out everything there is to know about the topic at hand, he would completely lose interest in the said topic and move on to something else. Being apathetic and having little experience in interacting with people, he is seen to be a cold person who would often annoy people around him with cold hard facts presented in a completely tactless manner. He is also slightly impolite as he often refers everyone except Shotaro, Akiko and his family by their full names while showing no respect to his elders.

After spending time with Shotaro and Akiko, Philip's human and emotional side starts to surface and develop, and over time, he came to love Fuuto and the friends he and Shotaro made. While initially only saying it as a matter of fact, he eventually also comes to playfully tease Shotaro about being 'half-boiled', (which is true most of the time) while still being his most trustworthy friend. Although Philip and Shotaro sometimes fought with each other, Philip understands Shotaro a lot and stated that W which holds the will of Sokichi requires Shotaro's kindness which he also stated is Shotaro's best charm point.

Philip maintained a close relationship with Wakana Sonozaki after helping her in the Violence Dopant case, which was further enhanced when he discovered his identity as Raito Sonozaki until Wakana was convinced to join in the Gaia Impact plan. He became devoted to bring his family out of their Gaia Memory plans so that they can be a true family again, even if it meant disappearing forever.

Abilities

 * Gaia Library access/Peak Human Intelligence
 * Due to his status as the True Gaia Memory's avatar, his focus and intelligence are comparable to a super computer and he has access to the Gaia Library, which in turn means that he has access to any recorded knowledge on Earth. While this does not mean that he actually knows everything, his unparalleled ability to crunch enormous amounts of information in a very short time makes him looks as though he does know everything. He can also seemingly connect with others and bring them to the Gaia Library if the person has a Live Connector on them.


 * Age Negation
 * Since Philip was reborn as humanoid data, his body would not be subjected to the aging process.

Weakness

 * Poor Body Condition
 * Being confined most of the time to the hangar doing researches, both before and after being rescued, he does not get to exercise much and as such, he is physically weaker than Shotaro. The FangJoker transformation, which uses his body instead of Shotaro's, thus take a severe toll on him should he sustain the transformation for extensive periods. While he is technically capable of fighting, as seen when he is in FangJoker form, his weak body normally did not allow him to effectively do so outside of transformation. Despite being able to control the right side of any of Kamen Rider Double transformations, he usually yields full control to Shotaro when transformed while he acts as the battlefield tactician. It seems that fighting as Double has strengthened Philip somewhat though, as shown later on in the series.

Devices

 * Double
 * Double Driver - Transformation belt as Double
 * Gaia Memories - Devices that used in Double's transformation or power-ups in finisher attacks.
 * Fang Memory - Dinosaur-like Gaia Memory that assist Philip whenever he is in distress. Also allows him to become Double as Fang Joker.
 * Xtreme Memory - Bird-themed conjoined Gaia Memories that transforms Double into Xtreme Mode. Philip resides in this Memory during the period of reconstructing his new body.
 * Memory Gadgets - Support robots that are empowered by pseudo-Gaia Memories.
 * Cyclone
 * Lost Driver - Transformation belt as Cyclone, received from Shroud after having no other alternative in combating against Zoo and Zero Dopant.
 * Gaia Memories - Devices that used in Cyclone's transformation or power-ups in finisher attacks.

Weapons

 * Maximum Slots - Gaia Memory slot that enables Double/Cyclone to perform Maximum Drive as barehanded.

Vehicles

 * HardBoilder - Double's main Rider Machine.
 * RevolGarry - Double's main base of operation and truck which supply power-ups for HardBoilder.
 * Gunner A - Accel's mecha/robot ally, borrowed by Double in a battle against a Quetzalcoatlus Dopant.

Portrayal
Philip is portrayed by Masaki Suda (菅田 将暉). As a child, Philip is portrayed by Tomoya Hashimoto (橋本 智哉).