Grinman

Grinman, Better known as the Cock Mongler or Shock Mongler in the UK, Is a scary L4D1 horror monster

About
The Grinman is a scary horror monster who has the power to mind control people nearby. The people he mind controls get the same face as him, A terrifying facial expression and the urge to serve Santah, Grinman's scary evil overlord.

Trivie
In the UK, The nickname "Cock Mongler" was renamed to "Shock Mongler" because of the ethical implications of using the word "Cock" taking the spotlight away from the meat industry's ethical concerns in the year 1997.