Hey dudes, i managed to think up of a few things for our Incubus fellow, imagining his voice to be a mix of Scar [Lion King] with Sheere Khan's demeanor - He's Sly, cunning, overflowing with sexual energy and has a bag full of tricks to acquire his preys.

Now i may make him even more slender just to reinforce the point that he does not LOOK strong and can easily trick his preys into thinking that the myths were bogus. In reality, this is not someone you want to remain close to at any time.
One hint : Magic
Other hint: Old sketches hahaha