Graystripe is the former deputy of ThunderClan and Firestar's best friend. He is Firestar's age and is described as an amber-eyed, gray tom with a stripe of dark gray fur going down his back and tail. He has had 2 mates: the deceased Silverstream of RiverClan, who's Stormfur's mom, and Millie, former kittypet, who bore him Briarpaw, Blossompaw and Bumblepaw.