Jeff "Boomhauer" Boomhauer is a central character in the animated series King of the Hill, best known for his rapid, heavily accented speech that is often incomprehensible to outsiders but understood by his close friends: Hank Hill, Dale Gribble, and Bill Dauterive. Voiced by series creator Mike Judge, Boomhauer is a tall, platinum-blond ladies' man with a passion for classic cars, particularly a 1969 Dodge Coronet Super Bee, and a reputation for womanizing.

Bobby Hill, voiced by Pamela Adlon, is the gentle and innocent only son of Hank and Peggy Hill in the animated series King of the Hill. Originally depicted as a chubby, pre-adolescent boy with a distinctive buzzcut who struggled to fit into his father’s traditional Texas lifestyle, Bobby is characterized by his kindness, creativity, and unconventional interests like comedy and cooking. In the 2025 Hulu revival, he reappears as a 21-year-old professional fusion chef and business owner in Dallas, maintaining his empathetic core while navigating adult responsibilities alongside his best friend and roommate, Joseph Gribble.

Peggy Hill, born Margaret J. "Peggy" Hill and voiced by Kathy Najimy, is the wife of Hank Hill, mother of Bobby Hill, and aunt of Luanne Platter, residing in Arlen, Texas, after moving from Montana. Peggy is characterized by her inflated ego, self-proclaimed polymath status, and her catchphrase "Ho yeah!", often leading to chaotic situations despite her well-meaning nature.

Hank Hill is the protagonist of the animated sitcom "King of the Hill," where he lives in the fictional town of Arlen, Texas, with his wife Peggy and son Bobby. He works as the assistant manager at Strickland Propane, where he is passionate about selling propane and propane accessories, often showcasing his enthusiasm for his job. Hank is known for his strong morals, patriotic pride, and love for beer, typically drinking Alamo brand in the alley behind his house with his friends. His character is portrayed as a good-natured, wise father with some anger issues, and he is often seen interacting with his friends Dale Gribble, Bill Dauterive, and Jeff Boomhauer.

Dress like Luanne Platter from King of the Hill with this costume guide!

Channel your inner conspiracy theorist with our Dale Gribble costume guide!