bodyguard
A bodyguard (or close protection officer) is a type of security guard, or government law enforcement officer, or soldier who protects a person or a group of people—usually 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.source:wikipedia
