Answer:
Shadow
Step-by-step explanation:
The shadow character is called the character that is the villain in the story, is the one that serves as an antagonist for the hero of the story, and he tries by all his means to stop him and to make him suffer, he doesn´t always has to be a character, it could be destiny, or a force, or a spirit, or bad fortune but the point that this entity is always trying to stop the hero from succeding.