Now that we know that J.K. Rowling will be screenwriting a series of films based on the wizarding world of Harry Potter, some fans are wondering what fantastic beasts will appear in the film adaption of Fantastic Beasts and Where to Find Them, that were not included in the original movies.
Dobby is the brave house-elf who worked in the Hogwarts kitchen, after Harry Potter freed him from the Malfoy family. Since the new film is based on the book, "Fantastic Beasts and Where to Find Them," the house-elves can be considered a fantastic beast because of their extreme loyalty and submissive behavior to their masters.
The doxy are little blue fairies that infest houses. They were mentioned in the book, "The Prisoner of Azkaban," when the doxy fairies infested the House of Black aka Sirius Black's house.
Blast Ended Skrewts appeared in the book, "Harry Potter and the Goblet of Fire," when Professor Rubeus Hagrid introduced them in his Care of Magical Creatures class. These creatures were horrible because they had suckers and stingers underneath their bellies and occasionally sparks will fly out of their ends which made them propel forward. The students hated them, but Hagrid loved them and found them to be exciting.
Nifflers are creatures with long snouts that can find buried treasure. They are attracted to shiny objects and are used by the goblins at the wizarding bank, Gringotts. Hagrid introduced these creatures in his class.
Knarls were also introduced in Hagrid's class. These creatures resemble hedgehogs and their quills are used for magical purposes.