Anthony Michael Hall, star of The Dead Zone and inspiration to nerds everywhere, has signed on for a role in 'The Dark Knight,' but he's not saying anything about it, reports the LA Daily News. 

"I signed a confidentiality agreement, and I can't say which part I'm playing because it affects the story," Hall said. "I can't give away the suspense — it's a $200 million surprise, and I don't want to be the guy to ruin it.  I'm excited about it — Christian Bale back as Batman. Heath Ledger is joining the cast as the Joker. Of course, Morgan Freeman and Michael Caine return, and they're great. ...  I loved the 'Batman' series, so Batman has truly always meant something to me. It's really been one of my dreams as an actor to become Batman.

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Currently, Hall is starring in USA Network's The Dead Zone, originally based on the Stephen King novel but in its sixth season, the series has taken on a life of its own.  The cast and crew have been very supportive of Hall's role in "The Dark Knight," even changing the series' filing schedule in order to accommodate his trip to the set.

Said Hall, "They're shooting in London, Chicago and Hong Kong. My next dates are in Chicago, the third week of August with Morgan, then I get to go back to London."

Can he tell us anything about who he'll be?

"It's really a great role. I'm in throughout the whole movie, and I'm really looking forward to working with Christian and Morgan and all these real Hollywood heavy hitters."

Guess not.  So have at, gentle readers.  What character do you think he's playing?