Orlando News 13 has confirmed that Dan Radcliffe and Rupert Grint will both be attending the Grand Opening of The Wizarding World of Harry Potter theme park. The Times reports that Michael Gambon (who plays Dumbledore) will appear as well.
On a related note, we at MuggleNet recently learned that the actors will be pulling into the park via a Knight Bus during the Grand Opening. It should be quite the photo op!
We hope to receive a full list of stars attending sometime this week.