The Demonic Trio: Body, Spirit and Mind

Are You afraid of the Dark? And of all its' inhabitants? You should be, if You're hiding something ugly in your filthy little soul ;) ... 
I'm gonna show You that not all dark things are fearful and not all creatures with monstrous faces have monstrous souls...
I give You The Demonic Trio: Body, Soul and Mind... Can you guess who's who?...