Petey is a fictional character from the children's book series created by Dav Pilkey. He is a clever and mischievous cat who often finds himself in humorous situations. Petey is known for his distinctive appearance, featuring a round face and a striped body, which makes him easily recognizable to young readers. In the stories, Petey often interacts with other characters, including Dog Man, a heroic dog who fights crime. Despite his mischievous nature, Petey has a good heart and sometimes helps others, teaching valuable lessons about friendship and kindness throughout the series.