There was another creatures which made of several mixture between humans, animals, plantations, and other entities. God breeds them in the moon, billion years ago. Those mixed up creatures is vampires, werewolves, jinns, unicorns, centaurs, etc. read more
There's a Surah (Chapter) in Quran called Al-Jinn. And as for ghosts (being a lost soul or angry soul of a dead person) they do not exist according to Islam. Allow me to add to this that it is said that some Jinns might witness murders or whatever mishaps and that they would act like what is usually called "ghosts" or "poltergeists". read more