The Enforcer

The Enforcer is a stock character or role: someone who uses intimidation or violence to ensure compliance with rules or demands.

In organized crime, the enforcer carries out threats and punishments on behalf of a boss.

In sports, an enforcer is a player whose primary job is physical intimidation—protecting teammates and retaliating against opponents: Every hockey team needs an enforcer.

The term suggests someone who does the dirty work others won't.