The Vampire Diaries features Nora Hildegard and Mary Louise, a prominent lesbian couple whose deep, complex relationship is central to their character arcs. Despite being antagonists, their love is portrayed with dignity and ultimately affirmed through their heroic sacrifice, contributing to a net positive portrayal of LGBTQ+ themes.

Bonnie Bennett, a character described as white in the original book series, is portrayed by a Black actress in the show. This constitutes a clear instance of a race swap.

The show frequently uses Christian iconography, moral frameworks, and concepts of good/evil and redemption as a backdrop for its supernatural narrative. It portrays faith as a source of strength and morality, rather than something to be ridiculed or condemned.