Grimrr was appointed king of all Werecats during the Rider War to unify their scattered population. During his meeting with the Varden, where he made the alliance, he displayed an obvious dislike of Angela - when Nasuada stated that she would have to have their minds examined to determine whether they were a threat, he agreed but demanded that under no circumstance should Angela be the one to do so. This was because of a spell Angela had previously placed on him - he could utter nothing but birdsong for over a week ("cheep-cheep"). He was missing two fingers in his human form, but it was not known how he lost them.
Role in InheritanceEdit
In exchange for his services, he negotiated with Nasuada and persuaded her to agree to some of his terms. The werecat army under the deal received armor for one of their two forms, a dagger, a bird every day and every other day a bowl of liver. Grimrr had originally asked for armor for both human and feline forms, but Nasuada conceded only one - either feline or human. As part of the deal, when Galbatorix was overthrown and Queen Nasuada sat on the throne, a pillow beside the throne for a werecat was placed, should one wish to be present: the first werecat to take this place was Yelloweyes.
He was described as having an unusual appearance, being roughly four feet tall, with a small pointed chin, wide cheekbones and slanted green eyes. His eyelashes were winglike and he had ragged, rather long, lustrous black hair. He wore a rough leather vest and a rabbit-skin loincloth. He had numerous scars and was missing two fingers on his left hand.
One of his titles, "He Who Walks Alone", refers to Rudyard Kipling's "The Cat Who Walked By Himself", where: "He will kill mice, and he will be kind to babies when he is in the house, just as long as they do not pull his tail too hard. But when he has done that, and between times, and when the moon gets up and night comes, he is the Cat that walks by himself, and all places are alike to him. Then he goes out to the Wet Wild Woods or up the Wet Wild Trees or on the Wet Wild Roofs, waving his wild tail and walking by his wild lone."