Starbreeze is an Air Elemental and friend of Alex Verus who has been known to transport him at times.
While not her full name (that changes every time she's asked it) Starbreeze his a Air Elemental Alex himself comments that she's more than likely been around since the birth of the earth but is fairly slow even with that she like most other elementals is very powerful.
Thirteen: during the first book Starbrreze meets thirteen and comments that she's "wrong".
Alex Verus: Starbreeze and Alex are friends commonly she transports him to places by turning him to air and moving him on the winds and he sometimes give her tiny trinkets she enjoys playing with
Luna: Starbreeze stays away from Luna as her curse hurts her.