The Hills Mischa Barton from 'The O.C.' joining MTV's 'The Hills: New Beginnings' revival of 'The Hills' 10/04/2018 The Hills: New Beginnings has added former The O.C. star, Mischa Barton, to its cast mix of original stars and fresh faces. Read More RELATED NEWS Kristin Cavallari debuts new 24-year-old boyfriend Mark EstesBrody Jenner and Tia Blanco welcome their first child'The Hills' alum Brody Jenner engaged to pregnant girlfriend Tiarah "Tia" Blanco TAGS: Dancing with the Stars Laguna Beach Kristin Cavallari Lauren Conrad Brody Jenner Audrina Patridge Mischa Barton Whitney Port Natasha Bedingfield The O.C.
