[ferretchucker]

I think that's just a rumour, considering Penguin is ruled out. It probably started with someone just commenting that they think "he might be good for the role".

If they don't use Joshua Harto as Coleman Reese for the riddler, than it could possibly be him. Apparently David Tennant would be interested in the role (Scottish actor who currently plays "The Doctor" in Doctor Who, and played Barty Crouch Jr. in Harry Potter 4.) Out of the three of them I think they'd all be good.