Wadsworth is the main antagonist of Clue. His real name is Mr. Boddy, an expert extortionist who runs a network of spies and informants.
He is portrayed by Tim Curry.
Mr. Boddy runs a network of spies, who help him gather private information about the private lives of several people connected to the United States government. He then blackmails the person for large sums of money.
Mr. Boddy cleverly comes up with a plan to disguise himself as a butler named Wadsworth. He then invites six of his victims to a mansion for a dinner party. He also employs his spies to aid him in his scheme, posing as a cook, a maid, a cop, a motorist, and a singing telegram girl. He also forces HIS butler (likely the REAL Wadsworth) to pose as Mr. Boddy and mislead his victims. He even fabricates a story about his wife committing suicide as a result of Mr. Boddy's blackmail.
The party turns sour when the guests are given weapons, and someone tries and kills the fake Mr. Boddy. This leads to a night of murder, as each one of the undercover spies are killed off one by one. The group works together to try and solve the mystery, with Wadsworth appointing himself as leader of the group. After six murders, Wadsworth claims he knows who the killer is, but first explains HOW it was done.
Little by litte more truth is revealed. The guests find out that everyone who died was a spy for Mr. Boddy, and who they spied on. At the very end of the movie, it's revealed that all but one of the guests is a murderer, each one killing the informant who gave Mr. Boddy information on them personally. When the guests can't figure who killed the final victim, Wadsworth reveals that he did. He then reveals the truth and thanks his victims for killing all his spies so there is no evidence against him.
However, right as Mr. Boddy reveals he will continue to blackmail them, the one innocent guest pulls a revolver out of his pocket and kills him. The guest reveals he is an FBI agent and the others guests are under arrest.