Kristen Bell started acting in Veronica Mars in 2013.
Kristen Bell . During her time on Veronica Mars , Bell appeared as Mary Lane in the film Reefer Madness : The Movie Musical ( 2005 ) , a reprise of the role she had played in the New York musical upon which the film was based . Veronica Mars . 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 .