Director J.J. Abrams is still in the process of casting Star Wars: Episode VII. I'm actually surprised that there have been no official casting announcements yet, but I imagine they are coming soon.
There's a rumor that an actor named Jack O'Connell is up for a "key role" in the film. I'm not really familiar with the actor, but he's been in films such as Tower Block, Harry Brown, and Skins. According to sources at Bleeding Cool, the actor has "met with Abrams and the signs I’m getting are that this meeting went very well."
Up to this point, some of the names we've heard that are up for parts in the film are Chiwetel Ejiofor, Benedict Cumberbatch, Matt Smith, Rachel Hurd Wood, and Jason Flemyng.
I'm excited to see who actually ends up being cast in the movie. In the meantime, all we have to go on are a bunch or short lists and rumors.