Ed Harris to Play John McCain in HBO's 'Game Change'

Ed Harris Portrait 2011
Gareth Cattermole/Getty Images For Dubai International Film Festival

DUBAI, UNITED ARAB EMIRATES - DECEMBER 15:  Actor Ed Harris attends "The Way Back" Premiere during day four of the 7th Annual Dubai International Film Festival held at the Madinat Jumeriah Complex on December 15, 2010 in Dubai, United Arab Emirates.

The actor joins previously cast Julianne Moore, who will play Sarah Palin in the upcoming telepic.

Four-time Academy Award nominee Ed Harris has been cast as presidential candidate John McCain in HBO's upcoming film, Game Change.

HBO Films and Everyman Pictures' Game Change follows McCain's 2008 presidential campaign, from his controversial selection of Palin as his running mate to their ultimate defeat in the general election.

Julianne Moore is already on board to play former Alaska governor Palin.

The telefilm is based on the bestselling book of the same name by John Heilemann and Mark Halperin.

It will be directed by Jay Roach, with a script from Danny Strong. The pair previously collaborated on HBO's Emmy-winning telepic Recount.

The Beautiful Mind actor is repped by CAA.