Keith R.A. DeCandido, author of Supernatural: Nevermore and Supernatural: Bone Key, and Jamie Chambers, Supernatural RPG game designer, are scheduled to attend I-Con 28, to be held April 3-5, 2009 at Suffolk County Community College, Brentwood, Long Island, New York, USA.
For DeCandido I-Con 28 schedule, please click here.
Source: Keith R.A. DeCandido LiveJournal, I-Con 28.