Raito Sonozaki, also known as Philip, is one half of Kamen Rider W or Double. As an avatar for Earth's true Gaia Memory, he has complete access to the Gaia Library and possesses computational abilities comparable to a supercomputer. When fighting Dopants alongside Shoutarou, Philip can project his mind into Shoutarous body to form the right half of Kamen Rider Double. In this way, Philip embodies the consciousness of Double.