Roscoe's appearance is based on a stereotypical “dark horse”, with a dark gray mane and red eyes with small black pupils. The whites of Roscoe's eyes turn yellow when he is angry. He initially wears the Checkered Shirt, which matches his initial house theme.
Below is a brief description of the cranky personality. For more information, click here.
Roscoe is a cranky villager, and will appear more mature compared to other male personality types. This will make him come off as rude and belittling when talking to other villagers, including the player. Despite this, he will learn to confide in the player, considering them his only friend. He will enjoy the usual hobbies; not for competition, but for relaxing and peaceful reasons of calm and tranquility. He will find it difficult to socialize with peppy villagers, who he will appear rude behind their backs to. In New Leaf, he may also find it difficult to get along with both smug and uchi villagers, because they will say he's starting rumors about them. He will get along with snooty villagers, as well as other cranky villagers, who he will share deeper conversations with. He will, on occasion, annoy a normal villager, usually when being mean about something or someone. When he is sick, he will insult the illness.
In Doubutsu no Mori e+, his house has a Chess theme going on in his house. He has the Plaza Wall as his wallpaper and has the Chessboard Floor as his flooring. On his stereo, it plays K.K. Dirge.
Roscoe's house has a modern theme, featuring many items from the Modern Series. In New Leaf, he has the Sleek Series. Roscoe also has two chess pieces in his room – the White Knight and Black Knight. Knights in chess are represented by horses, a reflection of his species. K.K. Dirge plays in Roscoe's house. He also has a Baby Bear which, to some, seems out of character for a cranky villager. In Wild World, he has a plant, a Gas Pump, a Modern Lamp and Modern Sofa, a white chess piece and a Candle. If he has a stereo, it will play K.K. Dirge.