Robin Williams is Hugo Strange?
An interesting tweet from Batman On Film has lead to speculation that Robin Williams is playing Hugo Strange in The Dark Knight Rises. Here's the tweet below:

"RW as Strange? Hmm..."

The rumors of Hugo Strange popping up in The Dark Knight Rises have been persistent as of late. It was once thought that Tom Hardy would play the villainous character, although it was later confirmed that Tom Hardy is portraying Bane.

It isn't clear where Batman On Film received their information from, or if that information is even valid.