Veronica Mars is an American teen noir mystery drama television series created by screenwriter Rob Thomas. The series is set in the fictional town of Neptune, California, and stars Kristen Bell as the eponymous character. The series premiered on September 22, 2004, during television network UPN's final two years, and ended on May 22, 2007, after a season on UPN's successor, The CW, airing for three seasons total. Veronica Mars was produced by Warner Bros. Television, Silver Pictures Television, Stu Segall Productions, and Rob Thomas Productions. Joel Silver and Thomas were executive producers for the entire run of the series, while Diane Ruggiero was promoted in the third season.