This from TLC...

Christian Coulson Joins Collectormania's Special Guest List

Christian Coulson (Tom Riddle) is the latest special guest to be confirmed for Collectormania, which will be held October 3rd through the 6th at Middleton Hall in Buckinghamshire. Also appearing are Toby Jones (Dobby), James and Oliver Phelps (the Weasley twins) and Matthew Lewis (Neville).