Kristen Bell is an American actress. She gained fame as the title role on the critically acclaimed television series "Veronica Mars" from September 2004 to May 2007. During her time on Veronica Mars, Bell appeared as Mary Lane in the film Reefer Madness: The Movie Musical, a reprise of the role she had played in the New York theatrical production of the musical on which the film was based. In 2007, she joined the cast of Heroes playing the character Elle Bishop, and Gossip Girl as the off-screen titular narrator.