Ruben Victoriano, better known as Ruvik, is the primary antagonist in The Evil Within and a major character in The Assignment and The Consequence. He is a thin, sharp-featured man who is heavily disfigured with various burns and scars, giving him the appearance of a walking cadaver. Seemingly unrestrained by the laws of physical reality, he is capable of teleportation, superhuman speed, and invulnerability to the majority of all physical assaults. Fueled in equal parts by a seeming desire for revenge and his own madness, Ruvik torments all those who come into contact with him.

Cut off from the outside world, Ruvik continued his research alone. Vicious burns have left his skin senseless and useless for regulating his body temperature. Ravaged by ceaseless headaches and physical and mental seizures, he was known for being close to the physical limits of his body.