prequel, ET is keeping track of all the stars who will play the mentors, tributes and pivotal decision-makers in this new saga, set years before Katniss Everdeen entered the Hunger Games arena.The upcoming film tells the origin story of the franchise’s dystopian president and ringleader, Coriolanus Snow, played by Tom Blyth, and friends and enemies that shaped him into the nefarious leader fans saw in the original trilogy.Oscar-winning actress Viola Davis will portray Head Gamemaker Volumnia Gaul. «Dr.