"The IT Crowd" funnyman Chris O'Dowd and acclaimed Chinese actress Zhang Ziyi have joined the cast of the sci-fi thriller "God Particle" which J.J. Abrams is producing for his Bad Robot Productions label. David Oyelowo, Gugu Mbatha-Raw, Daniel Bruhl and Elizabeth Debicki have already signed on to play crew members aboard a space station who find themselves alone after a scientific experiment causes Earth to disappear.