Rüf Rüfman is Ruff's Swedish rock star/environmentalist cousin. He speaks with a Swedish accent and sometimes uses Swedish phrases or sayings. He is seen in Ruff Rocks the (Environmentally Sustainable) House, when he has a concert booked in South Carolina, but he needs a "green" place to stay, so the Fetchers go build him one, while the others are learning how to play rock. In Birds are Handy he tells Ruff that if he can get recordings of birds, he "can dance with Hans", which Ruff mistakes him meaning he can dance with Hans Ektershooping, a Swedish pop star, when Rüff really meant dancing with hands. At the end, Chet knocks down Butterscotch on Ruff's hands making Ruff decide not for him to dance with hands