The timeless battle of good versus evil was a central theme in The Vampire Diaries' eight-season run, with many characters residing in a morally grey area. The Mystic Falls group, comprising Elena, Damon, Stefan, Bonnie, Caroline, and Matt, often found themselves facing off against various villains while also engaging in questionable actions themselves. From plotting genocides for personal gain to engaging in destructive family dynamics, each main character showcased their capacity for doing wrong. Betrayals and heartbreaks further underscored the fragile nature of morality in The Vampire Diaries.