His first high-profile TV guest star role probably was as "The Fan" in a February 2000 episode of Friends (season 6, episode 14). The next year, he was cast as Andy on According to Jim. He has also appeared in movies including Wedding Crashers and Showtime, and in commercials including Ball Park hot dog commercials as "Frank," and a PSA for the V-chip on ABC, as Jim's Andy. In 2007, he appeared in two episodes of My Name Is Earl as Ron, a security prison guard. Campbell also played Detective Crockers in the 2007 horror film Drive-Thru. That same year, he made a guest appearance on Supernatural (episode: "Bedtime Stories").
