King of the Hill was, and remains, a quiet eye in the center of the storm that is much of animated television. While some of the characters are a bit wacky, nothing happens in the show that couldn't conceivably happen in reality. Hank and his extended family lead nice, quiet, respectable lives in suburban Texas - and that's just the way they like it. Anything that happens to upset the even tenor of things is (rightly) seen as a threat.
Over time viewers have come to love the off-kilter citizens of Arlen: Hank's steadfast squareness and conservatism; Peggy's penchant for perceiving herself to be more clever than she actually is (especially her shaky command of the Spanish language); Bobby's refusal to act like a normal kid; Dale's fanatical suspicion of all authority, as well as his cluelessness that his son Joseph was actually fathered by native-American healer John Redcorn; neighbor Kahn's dismissal of 'hillbillies'; LuAnn's dull-wittedness; Bill's crushing loneliness; Boomhauer's unique way of expressing himself. The show's cast, for all their outward appearance of normalcy, is a collection of misfits and eccentrics who happen to have been thrown together by geography - in other words, just like those of us sitting on this side of the screen.
Given the leisurely pace of the show (especially when compared to manic cartoons like The Simpsons often is) and its casual early- Sunday-evening time slot, King of the Hill has always worn its politics on its shirtsleeve, but not in such a way that it is shoved down anyone's throat; nor is there much that could conceivably be disagreed with by any but the most radical persons. The basic philosophy of the characters is that in small-town America, people ought to be able to lead their lives in peace and privacy, and with a basic dignity.
-The series was created by Mike Judge (who also created Beavis & Butt-Head) and Greg Daniels, an executive producer for The Simpsons.
-Judge's voice for Hank is terribly similar to that of Tom Anderson, the complaining neighbor from Beavis & Butt-Head. Anderson was possibly the inspiration for Hank.
-The show was the first cartoon to become a hit after the spectacular success of The Simpsons.
-Toby Huss does the voices of Cotton Hill, Kahn Sr., and several other incidental characters. Among other things, he appeared on an episode of Seinfeld as the mysteriously attractive TV pitchman 'The Wiz', and played a prominent role as Artie, the Strongest Man in the World, in the Nickelodeon children's show The Adventures of Pete and Pete.
-Stephen Root does the voices of Bill Dauterive, Bud Strickland, and other incidental characters. He is known for such roles as station owner Jimmy James on NewsRadio, the blind radio announcer / recording engineer in O Brother Where Art Thou?, and most famously Milton Waddams, the office worker with a stapler fetish in Office Space.
-Kathy Najimy does the voice of Peggy Hill. She was a regular on Veronica's Closet and had prominent roles in Sister Act 2 and Hocus Pocus.