Seems that there is still some post production filming taking place for the second part of the last chapter of the Harry Potter Saga and both involve younger cast members joining the franchise very late in the game.
Newcomer Benedict Clarke and Bertie Gilbert are both joining the cast of “Part II.” Clarke will take on the role of a Young Snape. Gilbert will be playing the son of Draco Malfoy in the Epilogue of the film.
While the role of young Snape will likely be a bigger presence than the cameo of Malfoy Jr, the scenes he is involved in will be in flashbacks to a younger day of the Half Blood Prince.
The kids picked really look the part, and the scenes they are in are likely to add a little more depth to the film so I don’t mind it at all.