The latest couple of rumors seem to be making the rounds at a few different websites. Gerard Butler (300, The Bounty Hunter) is said to be up for the role of General Zod now that Viggo Mortensen is unable to star in the film. This seems logical due to the fact that Butler and director Zack Snyder have a good working relationship and are friends. Gerard Butler would fit the role perfectly if he does end up playing Zod (again, it is only rumored at this point that Zod is in the film).
There are also rumors going around that Edgar Ramirez is up for a villain role in the film (the rumors do not state which villain). Legendary Pictures is currently making "Wrath of the Titans", the sequel to "Clash of the Titans", which co-stars Edgar Ramirez. It makes sense that Legendary Pictures would look into hiring Ramirez for their upcoming film, "Superman: The Man of Steel".
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