2012 Oscar winners Streep, Spencer to be presenters at 2013 ceremony Jean Dujardin, best actor winner, and Meryl Streep, best actress winner, pose backstage at the 84th Academy Awards in the Hollywood section of Los Angeles on February 26, 2012. BEVERLY HILLS, Calif., Feb. 5 (UPI) -- Last year's Oscar winners Meryl Streep, Jean Dujardin, Octavia Spencer and Christopher Plummer are to be presenters on this month's telecast, producers said. "We are honored to have Meryl, Octavia, Christopher and Jean, last year's Oscar winners in each of the acting categories, return to the Oscar stage," producers Craig Zadan and Neil Meron said in a joint statement Tuesday. Oscars for excellence in film for 2012 will be handed out at a ceremony Feb. 24 at the Dolby Theatre at Hollywood & Highland Center in Los Angeles. Seth MacFarlane is to serve as host of the event.