The Queen's Brother, Fallen bodyguard in the background along with the Queen.
The Queen's Brother is a non-player character only seen in Story mode cut scenes. He is essential to the progression of the story line in which he and the Queen help the player find and activate a "key" to enter the Vex realm of Black Garden.
It is made apparent that he is the more rash and emotional of the siblings. While there are many sessions of whispering between the two, he does not always get his way. He often dismisses the Guardian's missions as suicidal.