Kamen Rider Faiz (仮面ライダー, Kamen Raidā Faizu, "Masked Rider Faiz") or SB-555 Faiz (SB standing for Smart Brain) is the main protagonist of Kamen Rider 555. Its gear is the first of the Rider Gears seen in the series. Its motif is the Greek letter phi (Φ). Kamen Rider Faiz may refer to any the following characters. The Faiz Gear mostly cannot be used by anyone that is not an Orphnoch. The Faiz Gear (ファイズギア, Faizu Gia) was the second set of Kamen Rider Gear developed by the Smart Brain Corporation