The casting for Inception continues as The Hollywood Reporter carries word that Ken Watanabe and Tom Hardy have joined Christopher Nolan’s project.

The contemporary sci-fi action film is reportedly set within the architecture of the mind. It stars Leonardo di Caprio as a CEO-type character. He will be contrasted by Watanabe who will play the film’s villain, a man who is blackmailing diCaprio. Hardy will be a member of diCaprio’s team.

Watanabe is noted for having played Ra’s Al-Ghul in Batman Begins; Hardy is best known for his role as the villain Shinzon in Star Trek: Nemesis.

Filming starts this summer.