Malekith

Another Marvel Cinematic Universe villain who was terribly underdeveloped, Malekith AKA Malekith the Accursed appeared in Thor: The Dark World.

Played by Christopher Eccleston, he was an ancient Dark Elf who sought to plunge the universe into darkness, exploiting a cosmic event known as the Convergence and utilising the Infinity Stone known as the Aether.

He had such great potential – due to his interesting back-story and the fact he was being portrayed by such a talented actor – but Marvel Studios again wasted him.

In the comic books, Malekith is an extremely powerful sorcerer – he can use magic for a variety of effects including illusions, teleportation, flight/levitation and shape-shifting – with superhuman physical attributes. In Thor: The Dark World, he was barely a match for Thor even when he was wielding the Aether.

His uninteresting characterisation was only matched in tedium by his boring power-set and the fact that he was killed under the weight of his own massive spacecraft was no bad thing.