The main antagonist of Zero Escape: Toki No Dilemma. His true identity is Delta (Kyokugen Dasshutsu).
Wears a black, wide-brimmed hat, a Plague Doctor Mask, a Black Cloak, a Butterfly Pin, and black Elbow Gloves with claws. Often seen with a Staff in hand.
Not to be confused with Zero (Kyokugen Dasshutsu), the main antagonist of Kyokugen Dasshutsu: 9 Jikan 9 Nin 9 No Tobira, or Zero III, a character from Kyokugen Dasshutsu ADV: Zennin Shibou Desu.