Henchman

A Henchman is a BDSM role where the person acts as an enforcer. The Henchman is more imposing and intimidating than a minion but not exactly a bodyguard. They are typically slightly malevolent. Henchmen will often shadow and respect the Alpha within a group and be as ready to fill the same role in their absence. This role carries less stigma than Teacher's Pet but not so much as their "right hand man" as they tend to retain their independence and also remain helpful.