Anya Alstreim is Knight of Six in the Knights of the Round and pilots the heavy assault Knightmare Frame, Mordred. She is a quiet and introverted person with a mysterious past and has a Britannian emblem tattooed on her left arm. She holds the distinction of being the youngest individual ever appointed to the Knights of the Round at the age of 15.
Seeking to be remembered, Anya maintains a blog which she frequently updates with pictures she takes with her Red and White; camera-phone. As one of the younger members of the Knights of the Round, she is close friends with Suzaku Kururugi and Gino Weinberg. Suzaku's cat Arthur also takes a liking to her, though the cat seems to be more affectionate to everyone except Suzaku himself.
In the past, she went to stay in the palace as an apprentice for a proper etiquette and witness Marianne's death at the hands of V.V.. It is also assumed that it was how Lelouch's photo was in her camera-phone.
Anya maintains a detached attitude in most situations, usually declaring most things to be boring or dull. In battle, her fighting style reflects her heavily-armored Knightmare; she annihilates her enemies with overwhelming force and doesn't hesitate to kill disabled enemies. However, this detached attitude also gives her a lack of common sense; she had piloted her personal Knightmare Frame just for the sake of capturing Lelouch’s hat to gain extra club budgets, disregarding the fact that she was piloting her Mordred in a non-combat area and had aroused the suspicion of the Knight Police, as well as forgetting the fact that she is to be a couple with Lelouch if she gets his hat.
In the novels, set in the year between the first and second seasons, Anya serves as Nunnally's knight. She demonstrates an unusual familiarity with the deceased Empress Marianne vi Britannia, able to find her way through Marianne's home despite it having been sealed off after her assassination. She cries for no apparent reason when piloting the Ganymede-based Europa.
Name: Anya Alstreim (アーニャ・アールストレイム, Ānya Ārusutoreimu?)
Blood Type: AB
Date of Birth: October 26, 2003 a.t.b.
Side: The Holy Britannian Empire
Occupation: Knights of the Round No.6//Mordred Pilot//Ashford Academy Student
Knightmare Frame: Mordred