Dutch Ogres seem really interesting. Apparently they are born in large litters and the "pups" from each litter are all genetically identical. They seduce people back to their lair and then rape them and eat them, not necessarily strictly in that order as they seem to like to just start eating people while they're still alive. They look like extremely attractive people most of the time. They might transform into something monstrous when they're about to feed; not sure of the details. Sometimes they enslave people, maybe whore them out for money, just in general extremely cruel and malicious. They also have some magical talent, spells and what-not.
Not trolls, but close.