He is a white tiger with dark gray stripes and whiskers. He has pink around his eyes, and is often seen glaring. The inside of his ears are light blue, and he initially wears the Bubble Shirt, which is the same shade of blue as inside his ears.
Below is a brief description of the cranky personality. For more information, click here.
Cranky villagers will usually appear in a grouchy or agitated mood, and are more difficult to befriend than other villager types. When talking to the player, cranky villagers tend to become angry if the player disagrees with them or refuses to do a favor. Like all cranky villagers, Rolf will be invested in his hobby and will often challenge the player to various competitions. He will easily get along with jock, snooty and other cranky villagers, and occasionally lazy and normal villagers as well. However, he will find it hard to socialize with peppy villagers, as they will seem overstimulated or immature. Rolf will also enjoy spreading rumors of other villagers.
He has a metal/rock themed house with two Bowtoids and plays the song Rockin' K.K. in his house on a gold stereo. He has a manhole, a mini bowtoid and a modern bed. In Animal Crossing: New Leaf, his house is more of an outdoor tent, with exercising/training gear scattered around. He now has Spring Blossoms playing on a tape deck.