User blog comment:CaptainClumsy/Hello, Welcome to my Blog!/@comment-26389992-20160907021323/@comment-7418318-20160908082736

I think Miki Itō (Gyokuen Ren in Magi among others) might work well for Irene.

Her voice is a bit deeper than the usual female Japanese voice you hear in anime and she can go from kind, nice and soothing to making your skin crawl with just her voice.