Arys Walker is the Gundam pilot of the Silverwind in my fic Circle of the Earth and of the Archangel in the sequel Face of the Enemy. She was used by OZ to infiltrate the Sanc Kingdom, although Arys had no idea that she was working for OZ. She is unable to feel pain, can communicate to her Gundam using a transmitter located behind her ear, and is an excellent pilot. She and Heero team up often at the beginning of Circle of the Earth and end up falling in love. (Yup, she's the one I wanted Heero interested in :-)

Arys' past is a little clearer than the other pilots. The difference is that she can only remember back to the year A.C. 190. Everything before that year is a blank. However, Heero's hacking uncovers Arys' past. She used to live in the L-1 Colony Cluster and was kidnapped by OZ at the age of 10 to be an experimental subject for the ZERO System. A year after her kidnapping, Arys killed her parents while under the influence of the ZERO System. It was that memory that snapped her out of her amnesia in Face of the Enemy. It is possible that her brother was the soldier in one of the first four episodes who was a subordinate of Zechs. Walker, as Zechs called him, was killed by Quatre. Arys has not yet discovered that she had a brother or that he was even a member of OZ.

In personality, Arys is a sort of cross between Duo and Heero, but she leans more toward Heero's personality. At first, cold, distant, and mechanical as a result of her time under the influence of the ZERO System, Arys regains her humanity when she meets Heero, Quatre, and Duo at the Sanc Kingdom Institution.