Leo Kamen, known as Kamen Rider Psyga, is a major antagonist in the series Kamen Rider Faiz. He is a European Orphnoch who serves Smart Brain and is contracted to hunt down other Orphnochs and Kamen Riders. Psyga is notable for being one of the few non-Japanese Kamen Riders and for wielding the powerful Psyga Driver and Flying Attacker. Ruthless and highly skilled, Leo Kamen leaves a significant impact on the storyline, confronting the protagonists with his formidable strength.