Who is Mr. Booby from Joseph Andrews ; with Shamela ; and Related Writings: Authoritative Texts, Backgrounds and Sources, Criticism and what is their importance?

Mr. Booby is Shamela's employer in "Shamela." He attempts to seduce his employee, but instead, believing her false professions of chastity and virtue, he marries Shamela and is cuckolded. Mr. Booby also appears in "Joseph Andrews" as Lady Booby's nephew and Joseph's brother-in-law, who rescues Joseph and Fanny from imprisonment.