Arthur Slugworth is the main antagonist of the Roald Dahl children's books Charlie and the Chocolate Factory and Charlie and the Great Glass Elevator, as well as the 1971 and 2005 film adaptations of the first book.
Slugworth is Wonka's biggest business rival and ultimately aimed to bring Wonka's Factory out of business and take the profits for himself. He was portrayed by Philip Philmar in the 2005 adaptation and Mr. Wilkinson posing as Slugworth in the 1971 adaptation was portrayed by Günter Meisner.
Slugworth was there during the opening of Willy Wonka's Chocolate Factory. After he would later became one of the rival spies of Willy Wonka, causing Wonka to close down his factory. He would later open his own factory called Slugworth Chocolate Incorporated. After Wonka began releasing Everlasting Gobstoppers, he became jealous, and was worried that Wonka's new invention would ruin his business. When Wonka began giving out the five golden tickets, he would tell each winner about the Everlasting Gobstopper, tempting them with bribes so they would bring him one that he could reverse-engineer to get the secret formula. However, at the end of the film it is revealed that "Slugworth" was really Mr. Wilkinson, an employee of Mr. Wonka who was tasked with testing the children to see if they could be trusted.
Books and 2005 film
Slugworth is mentioned in the books, as being Wonka's most vicious and untrustworthy rival. In the 2005 adaptation, he is briefly seen taking Wonka's secrets from one of his spies.
Tom and Jerry: Willy Wonka & The Chocolate Factory
In the animated adaptation of the 1971 film, Slugworth takes a far more villainous role openly chasing Tom and Jerry at one point.