Regenerator

Regenerators were experimental bioweapons created by the Plaga implantation procedure in the events of Resident Evil 4. Capable of near-instantaneous regeneration, they were able to take incredible amounts of damage before succumbing to their injuries.

Overview
The Regenerador appears as a large vaguely human-shaped creature covered in hairless, seemingly-rough gray skin. Their mouths are large, taking up most of their otherwise-featureless faces, and are filled with needle-like teeth which force the Regenerador into a grin.

Although they are usually slow, walking with a distinctive, unnerving, palsied gait, Regeneradores are capable of frightening bursts of speed when attacking, viciously slashing and biting, and stretching their arms to unnatural lengths to grab their prey.