medium? 
This person doesn't have that much appearance so audition for him if you want, you might also be the extras.
Tooru is a voice actor. He is a hard worker, but sometimes can cause trouble when he feels outshined by Mizuki. He sees Mizuki as his rival and gets mad when Mizuki doesn't show effort towards voice acting. He is often called by other people "Mr. Shadow hidden behind Aqua."
He thinks Mizuki and Shiro are dating (gay ouo). He later develops feelings for Shiro, but is too scared of Mizuki to do anything about them.
And his feelings weren't every officially confirmed?*coughs*