 "The first year is about getting to know the kids, and the second gives us the advantage of being able to explore their psyches a little more," said Elsley.Brittain said that the new cast would be quite different from the original characters, although people may still spot some similarities.Open auditions for the second generation of cast members were held in Bristol, which attracted 1,500 16- to 18-year-olds, followed by a further two days of auditions in London.