Doughboy is a shabti created by Julius Kane. He is activated by the phrase, "tell me what you know". Doughboy has no legs; Julius cut off Doughboy's legs so he will not escape and attempt to murder his masters. Doughboy is prideful and arrogant and seems to despise Magicians, particularly those of the Kane family. He doesn't like his name, Doughboy, and would prefer to be called Supreme-Force-Who-Crushes-His-Enemies. However, Sadie and Carter call him Doughboy anyways, and this makes him irritated and somewhat grumpy.
In the library of Brooklyn House, Carter and Sadie discovered Doughboy while exploring their father's workbag; they discovered him by chance when Sadie summoned him by jokingly saying 'tell us what you know'. Doughboy came to life and provided them with little information. He transformed back into wax after telling Carter and Sadie what he knew, greatly annoying Sadie. Doughboy also came in handy when Sadie and Carter went to Desjardins house. While Sadie was still in the form of a kite, Carter used Doughboy to find the Book of Thoth. Unfortunately, Desjardins' fruit bats heard the alarm and started attacking Sadie and Carter Kane after Carter returned to his bird form and they flew out the window. When Carter, Sadie, and Zia Rashid are trying to return to Phoenix, Doughboy gets smashed by Carter and turns into a coat in order to drive the cab that will take them back to Phoenix to battle Set. It is unknown what happened to Doughboy after Carter and Sadie reached Phoenix.
- In The Red Pyramid (graphic novel), Doughboy controls the feet pedals while Carter steers in the semi truck, instead of being smashed into a coat. In turn he appeared later in the graphic novel. Also, Sadie uses slightly different words to summon him.