Who is the spy in Charlie and the Chocolate Factory?

In "Charlie and the Chocolate Factory," the spy is Mr. Willy Wonka's former employee, known as the "spy" or "snoop." He is tasked with infiltrating the chocolate factory to gather information about Willy Wonka's secret recipes and operations. This character adds an element of tension to the story, as they represent the outside world’s interest in Wonka's unique creations. However, the identity of the spy is not explicitly revealed in the book.