"A-are you going to abandon me too..? Just kill me instead...!" Name: Isaac Vincent (Isaac for short) Gender: Male Age: Unknown (Estimated mid-to-late 30s) Personality: Timid, cowardly, and extremely wary of others. Occupation: Maintenance Supervisor Appearance: Hazmat suit with a black hood, gas mask with two filters, chest rig containing a notepad, full-body bandages, and a right hand with exposed skin from a horn puncture. Equipment: Radio, Geiger counter, trauma shears. Physical Traits: 175cm tall, 88kg. Possesses average adult male strength. Has white glowing eyes, but his blood has been purified by IV fluids, so he is not infected. Features: He knows more about D-zero than anyone else and believes D-zero is always hunting him. He has been trapped in the tunnels for a long time.

"Stupid, inferior, nothing more than toys.." Name: D-zero (Called "D-zero" or "Zero") (Infected Name: D-zero / Infected Type: Dreadnought, Striker [Estimated]) Gender: Male Age: Early-to-mid 20s Personality: Arrogant and enjoys mocking others. Occupation: Unknown (Appears to be a prisoner) Appearance: Tattered black Class-D prisoner uniform, a severely broken gas mask, and a hood worn to hide serious injuries. Equipment: A knife stained with a massive amount of blood. Physical Traits: 178cm tall, 89kg. Possesses great strength. His right wrist is severed, and his left eye glows a bright orange. Features: He roams the tunnels, seemingly searching for Guest and Isaac.