Born in Hastings, MT, Kilborn was raised by his father, Hiram, an insurance executive and his mother, Shirley, a junior high school teacher. By the time he was attending Hastings High School, Kilborn was a star basketball player who later played Division I ball for Montana State University from 1981-84; he later liked to boast that he set a Big Sky Conference record for most turnovers. Despite his prowess on the court, Kilborn had his sights on show business, with a special eye on becoming an actor or comedy performer. But following college, Kilborn drifted instead toward sports casting, landing a stint as a play-by-play commentator for Georgia's Savannah Spirits. After spending some time in Los Angeles studying improve and sending out audition tapes, he settled out West where Kilborn landed as a sportscaster for Fox affiliate KCBA-TV in Monterey, CA, where his quick quips won him notice; even earning him a fan following that included Robin Williams, who sent Kilborn an autographed poster after he cried "Jumanji!" during a basketball game.In 1993, Kilborn gained a national audience as one of the wisecracking sports anchors on the cable sports giant ESPN's flagship series, "SportsCenter" (1979-), where his razor-sharp comedic commentary and mischievous delivery helped revolutionize the way announcers presented highlights. For three years, Kilborn was part of a sports anchor team that included such irreverent sportscasters as Keith Olbermann, Dan Patrick and Kenny Mayne - a core group that helped propel "SportsCenter" into the preeminent highlight show. In 1994, the cable channel featured Kilborn and the others in a series of self-promotions called "This Is SportsCenter," a mockumentary-style ad campaign that often featured star athletes while lampooning what went on behind the scenes at the ESPN offices. One memorable commercial featured Kilborn's personal assistant praising his boss on camera, while b-roll footage of Kilborn terrorizing the poor kid was interspersed throughout. For his part, Kilborn hosted the late night broadcast of "SportsCenter" - which he dubbed the "Feel Good Edition" - and soon earned a large enough following that had him contemplating other avenues.Kilborn left ESPN in 1996 and brought that following to the original version of "The Daily Show" (Comedy Central, 1996-98), where he served as the host of a mock news program that satirized the news events of the day. Kilborn became known for his quick wit and for his ability to surprise - but never embarrass - his guest interviewees with his trademark segment aptly called "Five Questions." He also featured regular segments like "This Day in Hasselhoff History," which mocked the triviality of entertainment news programs. But once again, the ever-restless Kilborn left after just a few years for another program; this time leaving to assume the desk of the retiring Tom Snyder as host of "The Late, Late Show" (CBS, 1999-2004), which he reinvigorated with a more youthful edge and an experimental, devil-may-care brand of humor that garnered a loyal audience. Though structured like most other late night shows - an opening monologue followed by guest interviews - Kilborn's show also featured various skits, including his "Five Questions" bit from "The Daily Show." He spent five years on the show - longer than his previous two gigs - but abruptly left following contract negotiations that ended with Kilborn neglecting to renew.During his "Late, Late" run, Kilborn began to realize his long-held dream of acting on screen, starting with a small part in the irreverent comedy "Old School" (2003), starring Vince Vaughn and Will Ferrell. After Scottish-born Craig Ferguson took over "The Late, Late Show" in 2005, Kilborn focused exclusively on acting, making brief appearances in Wes Craven's "Cursed" (2005) and the Jeff Goldblum mockumentary "Pittsburgh" (2006), before landing a bigger role as the heartless coach of a baseball team in the critically panned comedy, "The Benchwarmers" (2006). Following a small turn in the Tim Allen comedy "The Shaggy Dog" (2006), he had a supporting role as a high school guidance counselor who advises a put-upon new student (Ryan Pinkston) to lie his way to popularity in "Full of It" (2007). Kilborn made his way back to late night television with "The Kilborn Files" (Fox, 2010), which featured a new sidekick, Christine Lakin, while restoring old favorites like "Five Questions." The show began airing in June 2010 in select Fox stations.