Cultural imperialism comes in many different forms: today Norwegian tooth trolls Karius and Baktus will be let loose in London in an attempt to get East End kids to get their toothbrushes out more often. Creations of Norwegian author Thorbjorn Egner, Karius and Baktus live in poor Jack's mouth where they continuously plot to create as much damage as possible. Little Troll Productions is staging “Karius and Baktus"at the Hackney Empire today and tomorrow.