J. K. Rowling

Jamiroquai Kinkshamer Rowling, better known as J. K. Rowling, first appeared on the spooky edition of the show. She has since appeared multiple times on the show, trying to sell one of her many new book series.

However, her first appearance was actually Harry Potter in a trench coat.

Books

 * Harold Portswood and the Stone
 * Harold Porter and the Chamber Choirs
 * Barry Porterman and the Chamber Choir of Violins
 * Harold Porterfield and the Chamber Velocity
 * Harold Patterboy and the Chandelier of Danger
 * Harold and His Friends and the Sticks They Have
 * An untitled collaboration with Arthur Conan Potter