North's right hand wolf, who's been with him since the founding of the Highwinds. He oversees the hunters with a sort of playful sarcasm, underneath which lies a brilliantly tactical mind. He is, however, also the wolf who barks out North's orders and keeps others in line, so these 'jokes' can quickly turn into scathing cold remarks at the flick of a tail.
Although their personalities seem at odds to each other, Shiver and North hold a close bond, and can often be seen taking walks together in their free time.