Fenrir joined the Nose to Tail family when he was left at the clinic front door at a very young age with a broken leg. After several weeks in a splint, he was healed enough to be able to leave the confinement of his kennel. He now spends his time protecting the second and third floors of the clinic, stealing food from staff lunches, and generally causing chaos. He ensures that all patients in the clinic are receiving the best possible care and routinely makes his rounds to ensure that all team members are working hard.