Kyo is the lead singer of Dir en Grey. That actually makes me happy that someone doesn't know who he is, and likes other JRock bands instead.
And yes, I actually own both Moon Child and Kagen no Tsuki and they're both amazing movies. They're both really sad but they have a point to them that I haven't found in a lot of movies. I loved that Moon Child was a vampire movie but that's not all it was about, and it didn't focus on the gorey aspect that most vampire movies do.
And Kagen no Tsuki was just a beautiful/tragic love story. They're both great, and I think Hyde did an amazing acting job in both. I hope he stars in more movies in the future