According to Variety Ralph Fiennes is in negotiations to play Hades, God of the Underworld, in Clash of the Titans. If all goes well Fiennes will be joining Gemma Arterton, Mads Mikkelsen, Alexa Davalos and Sam Worthington in the film, which tells the story of Zeus’ son, Perseus, and his battles against mythological beasts such as Medusa. Filming is expected to begin in around 2 weeks time, so these negotiations better get sorted out sharpish. It is not yet known whether Liam Neeson will still be playing Zeus as the recent death of his wife, Natasha Richardson, may make him unavailable.
Louis Leterrier (The Incredible Hulk) is directing, and in the past he said he hopes to turn Clash of the Titans into an epic Greek mythology franchise. Lets hope that happens, as we could do with one!
Update: According to THR Neeson is on-board:
Neeson is playing Zeus, the wise yet sometimes ill-tempered king of the gods and father of Perseus (Sam Worthington).
Fiennes will play Hades, ruler of the underworld who aims to overtake Zeus and rule over all. Fiennes’ deal is in still in negotiations.