The two-headed thief debuts in the episode "City of Thieves." He originally has Penny's flower basket, but after he steals Crossbow Guy's crossbow, Wizard Thief magically removes the thief's left head and steals both it and the basket.
As his name suggests, he has two heads. The two-headed thief has light-brown skin. He has one arm that splits into two different arms at the end of it. Each hand has only three fingers. He appears malnourished since his ribs are clearly visible. He has very long legs and wears blue pants and black shoes.
The two-headed thief seems to be able to levitate. After stealing Crossbow Guy's crossbow, he jumps high in the air and suddenly begins to float in midair.