Loup has physical traits of both Coyote and Ysengrin. He has Coyote's black, white, red and blue ear, and retains some of Coyote's colors on other parts of his body, including a red strip down his back, red around his eyes, a white chin, a blue ruff, and a blue stomach. Underneath, Ysengrin's brown fur can be seen.
In chapter 66, "Memories of the Worthless," Coyote invited Ysengrin to take one of Coyote's traits - his strength. Ysengrin accepted, and immediately afterwards, proceeded to attack, kill and eat Coyote . After eating Coyote, Ysengrin and Coyote transformed together into Loup, a new god who bears similarities to both gods, but who insists that he is neither.
Loup seems very much like Coyote: manipulative, tricky, wily, and a jokester at times. However, unlike Coyote, Loup occasionally shows flashes of Ysengrin's rage and lies. He appears to have both of their memories.
Role in the comic
Immediately after coming into existence, Loup proceeds to attack Gunnerkrigg Court, with the help of the seeds Ysengrin dropped in chapter 14 . His attack causes extensive damage which leads the Court to be evacuated .
Loup then calls Antimony Carver into the woods with a signal , wishing to meet with her. Annie enters the forest and meets Loup for the first time. During their meeting, time is slowed down, so that several months pass during the course of their conversation. Loup explains - whether truthfully or not - that both Coyote and Ysengrin are dead, and that Coyote manipulated his own death because he wished to die.
Loup makes demands of Annie, such as asking her to live with him in the forest , and requesting that she return the goose bone and lake water which were previously gifted to Parley and Andrew. He also asks her to get Renard to return the gift of taking bodies, which Renard was given by Coyote. In return for fulfilling his demands, Loup offers to have Annie released from her obligation to the psychopomps. He also gives his word that he will cease his attack on the Court.