Perhaps the stupidest character in the novel is Mr. Rushworth, who is unaware of his wife's adultery.  
Perhaps the stupidest character in the novel is Mr. Rushworth, who is unaware of his wife's adultery.  The most annoying character is Mrs. Norris, who lives with her brother-in-law, and tries to run the life of her niece, the heroine.  The plot truly begins when the brother-in-law and sister-in-law of the parson next door move in.  Henry Crawford has an affair with Maria Rushworth and runs away with her, and his sister, Mary, shows her true colors to her Edmund Bertram, who had planned to marry her.  Not surprisingly Fanny Price gets her man in, FTP, what Jane Austen novel?
Perhaps the stupidest character in the novel is Mr. Rushworth, who is unaware of his wife's adultery.  
Mansfield Park