Argos (Kamen Rider)

Argos (アルゴス, Arugosu) is the main antagonist of Kamen Rider Ghost: The 100 Eyecons and Ghost's Fateful Moment who transforms into Kamen Rider Dark Ghost (仮面ライダーダークゴースト, Kamen Raidā Dāku Gōsuto). He later gains the Extremer Driver and transforms into Kamen Rider Extremer (仮面ライダーエクストリーマー, Kamen Rider Ekusutorīmā).