Gellert Grindelwald

Gellert Grindelwald is a flashback antagonist, yet very important background character and historical figure from the Harry Potter series of books and their movie adaptations. He is also the main antagonist of the prequel series Fantastic Beasts, so far appearing as the main antagonist in the first two installments.

Grindelwald is an old friend of Albus Dumbledore, and considered one of the most powerful and dangerous Dark Wizards of all time, withLord Voldemort considered to be the only one able to surpass him. Believing that wizardkind was oppressed by the non-magical, Grindelwald sought to establish a new world order in which Witches and Wizards ruled over Muggles, claiming that his actions were 'for the greater good'.

In Fantastic Beasts, Grindelwald is shown as a force which has the worldwide wizarding community cowering in fear. Although not yet at the height of his powers, Grindelwald wreaks havoc and death in some big parts worldwide before eventually going undercover, slipping through the fingers of several magical governments. Fleeing Europe, Grindelwald arrives in America where he intends to harvest the powers of a magical beast called Obscurus to use them against his enemies. During his stay in the United States, Grindelwald goes under the alias of "Percival Graves", a high-ranking Auror and director of Magical Security for MACUSA. Grindelwald later attempted to take over Europe during the Second World War, but was defeated by his former friend and ally Albus Dumbledore in 1945 and imprisoned until his death at the hands of Voldemort.

Trivia

 * Grindelwald will become an enemy of Thomas the Tank Engine, Twilight Sparkle, Ash Ketchum, Tino Tonitini, and their friends in Thomas' Adventure of Fantastic Beasts film series