The Weasels are minor antagonists in the Disney universe. Depending on the incarnation, they may appear either as henchmen of Pete, as seen in the Disney's version of The Prince and the Pauper, or underlings to Mr. Winkie, as seen in The Wind in the Willows. They are supporting players in the villains tournaments, usually assisting more powerfull villains.
Disney Vs Non-Disney Villains War - Part Two