Billy Elliot the Forum

I just saw the show yesterday. I love it, great core graph great singing. There was a slight cast change, a guy name Jeff drushall played Sam, but I don't know if he just joined cast or something because he wasn't in playbill as a ensemble swing or u/s for role, but also I been to performance where they had a new cast member join cast for that day only(river Alexander as tall boy in billy elliot) and they had his bio in it on a sheet of paper, but they didn't have that in program and also another person was in cast that wasn't in playbill either. I try look for a cast board but only one was one I found with who playing who for that performance and I ask people that work there but they said there wasn't one . Jeff was great as Sam though, I even love the trio they were great. I like person play Sophia, but my mom thought audience didn't like her, but she was great.