He formed the Best Party in 2009 as a political satire but the party turned into a real political player after having electoral successes thanks for a reaction to the Icelandic financial crisis of 2008 to 2011. Gnarr and Sigurjon Kjartansson formed the radio and television duo Tvihofoi in 1994. He has starred in films and in stand-up comedy specials and is a member of the Icelandic Actors Guild and the Playwrights and Screenwriters Guild. Gnarr authored the book Gnarr!: How I Became the Mayor of a Large City in Iceland and Changed the World. In 2015 he joined Rice University's Center for Energy and Environmental Research in the Human Sciences as a writer.
