bodyguard

A bodyguard (or close protection officer/operative) is a type of security guard, government law enforcement officer, or servicemember who protects a person or a group of people — usually witnesses, high-ranking public officials or officers, wealthy people, and celebrities — from danger: generally theft, assault, kidnapping, assassination, harassment, loss of confidential information, threats, or other criminal offences. The personnel team that protects a VIP is often referred to as the VIP's security detail.