"We are happy to re-unite the 'Avengers' cast to present on our show," Zadan and Meron said in a joint statement Wednesday.
"Audiences who enjoyed the year's biggest box-office hit will be excited to see these terrific actors back together again."
Writer-director-comedian Seth MacFarlane is to serve as host of the Oscars, which will honor outstanding achievements in film for 2012.
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