Emperor's Royal Guard

The Emperor's Royal Guard also known as the Red Guards or Royal Guards were specialized troops tasked with protecting the Emperor and servants.

Two Red Guards were stationed on Mustafar and guarded the Emperor's Emissary, Lord Vader, in his castle when Director Orson Callan Krennic arrived to discuss the Death Star with Vader. In Rogue One the Red Guards appeared as Vader's bodyguards when Director Krennic arrived to Vader's castle.