Jack Pumpkinhead is a character from the Oz series, created by L. Frank Baum. He is a living figure made of a wooden body and a pumpkin for a head. Jack is known for his friendly personality and his desire to be accepted by others. In the stories, Jack Pumpkinhead is often accompanied by his loyal companion, the Saw-Horse. Together, they embark on various adventures in the magical land of Oz. Jack's unique appearance and kind heart make him a memorable character in the series.