I was hoping for GC's composer but shiros cool too. Has anyone been able to deduce who the seiyuu are yet? Someone on ANN mentioned one looks like mamoru miyano.
edit: Yep one is absolutely rie kugumiya the portrait is a perfect fit.
Further edits - One also looks like hiroshi kamiya. Yep im just searching random seiyuu
One on the far right looks like the all mighty sugiata. And one of them looks like fukuyama quite a bit....DAT SEIYUU CAST! Akira ishida seems to be a good fit for the one on the far left. The short one