How do I take my profile down from this website?

I added a fake profile in a skit of immaturity to Kids Casting Call Pro about 3 years ago. I'm now 17 and am rather embarrassed, I put a photo of me on and many false acting jobs. The worst thing is people Google friends' names, and so do some others. The problem is though, the two emails I used at that age are apparently "not on their records". Please help, what other things can I do? It's quite important. I hope to have an actual career as a writer and don't want such false info on my record.