Veronica Mars was the protagonist of a show of the same name.
Kristen Bell . Bell gained critical acclaim for her first major role as the title character in the teen noir drama television series Veronica Mars ( 2004 -- 07 ) . Veronica Mars is the fictional protagonist , occasional narrator ( through voiceovers ) , and antiheroine of the American television series Veronica Mars , which aired on UPN from 2004 to 2006 and on The CW from 2006 to 2007 . The character , created by Rob Thomas , was originally male and the protagonist of his unproduced novel Untitled Rob Thomas Teen Detective Novel , which eventually became the basis of the series .