It's the first we've heard of it, but according to The Denver Post, Robert Knepper (the wicked T-Bag on "Prison Break") is rumored to have a role in Wolverine.
Produced by JJ Abrams, the film sets itself up as a giant monster movie (refferred internally as Godzilla) which is shot using home video cameras from the point of view of real people who are experiencing the attack on New York City.