Human-ghost

A Human-Ghost, sometimes called "Half-Ghost" or a "Halfa", is a fictional species in the Danny Phantom's Universe. It is a hybrid between Human and Ghost, with the ability to change to and from said species and use the majority of ghost powers. Though the first human-ghost we see in the series is Danny Phantom, the main character in the show, he is not the first one to come into existence. Instead, Vlad Plasmius, who was caught in the blast of Jack Fenton's prototype Ghost Portal in college, gained both a disease known as Ecto-Acne as well as his ghost powers twenty years earlier. Danny would go on to suffer a similar accident inside the completed Ghost Portal, and would become a half-ghost, but without the ecto-acne. One main characteristic of Human-Ghosts is that they can shift between human to ghost forms at their own accord. This transformation, usually back to the human form, can also be triggered through exasution or lack of experience, as Danny did in his first fights. As a hybrid species, Half-ghosts' DNA is a combination of Human DNA and Ectoplasm, as the result of the exposure to high levels of ghost energy. Hybrids can utilize the majority of their powers while in human form, but in order to use them to their full potential must change into ghost form, a transformation Danny dubs "Going Ghost". The Human-Ghosts can be almost as or even more dangerous than a typical ghost, with equal if not above average levels of power and use the advantage of their human side against defenses like ghost shields. They also seem to have certain immunity to several ghostly effects, like Ember’s hypnotic music. Unfortunately, Halfas are vulnerable to other ghost weaknesses like Blood Blossoms or Ecto-ranium, and are able to be controlled by Freakshow’s Crystal Ball Staff.