enforcer

noun

1. One who enforces.
2. A hired strongman, especially working for the underworld.

   “At 199 centimetres and a hundred kilos going up, he was scary big and he found work as a bouncer and enforcer[.]”

3. The member of a group, especially of a gang, charged with keeping dissident members obedient.
4. (UK)A battering ram used by the emergency services for gaining access to locked premises.
5. A player who physically intimidates or confronts the opposition.