Robert Jeffrey "Bobby" Hill (born January 6, 1986) is a character on the animated series King of the Hill and is voiced by Pamela Adlon. Bobby is the only child of Hank and Peggy Hill.
Bobby Hill, nicknamed Bobby (originally to be named "Butch") was born on September 29, 1986, as revealed in Shins of the Father. He is 4 feet 11 inches tall (Bobby once commented on the fact that he was short for his age, stating he had not yet had his growth spurt) and overweight. Bobby is a school-aged boy who enjoys comedy, music, dance and socializing with his friends, Joseph Gribble and Connie Souphanousinphone. Although at times Bobby is seen as odd by his father and peers, he maintains a remarkable talent with people, particularly with girls, who find him cute and entertaining. Using these talents, Bobby aspires to be aprop comic like his comedic hero "Celery Head" (a parody of Carrot Top) and a "ladies man". Bobby displays a natural talent as amarksman, shown in How to Fire a Rifle Without Really Trying and "To Kill a Ladybird". Bobby is generally very passive and is occasionally a victim of bullies. However, Bobby speaks out on issues concerning love.
During the second episode of the show's first season ("Square Peg"), Hank says that Bobby is 11 years old ("My boy is not going to look at the inside of a womb. He's only been out of yours for 11 years!"). In the eighth episode of that season ("Shins of the Father"), Bobby has a birthday party. It can be assumed that Bobby turns 12 on this occasion since his next birthday, shown in the fifth season ("I Don't Want to Wait for Our Lives to Be Over..."), has him turning 13. Despite him being a teenager, as well as his friends and classmates experiencing puberty (all of whom he is older than), Bobby never reached puberty during the show's run. Bobby remains 13 for the duration of the series, despite the fact that several Christmas episodes air and his cousin Luanne Platter gives birth to a child of her own. In a coincidental matter, the show technically ran for 13 years (the last episode, "Just Another Manic Kahn-Day", aired in 2010); Bobby was 13 when the series ended; there was a statement in the episode To Sirloin with Love from Hank saying "I've been waiting 13 years for [a common interest]" - an inadvertent fourth wall joke. In one episode from the show's penultimate season, "Lady and Gentrification", Bobby mentions his upcoming 14th birthday, having still not hit puberty.