1. The Walking Dead (2010–2022):
    • A horror drama series about a group of survivors navigating a post-apocalyptic world filled with zombies​1​.
  2. Chilling Adventures of Sabrina:
    • A dark coming-of-age series featuring witchcraft and horror elements, contrasting with its lighter predecessor, “Sabrina the Teenage Witch”​2​.
  3. The Haunting of Hill House:
    • A critically acclaimed series that explores a family’s traumatic past in a haunted house, noted for its eerie atmosphere and emotional depth​2​​3​.
  4. Attack on Titan and Claymore:
    • These anime series delve into horror and dark fantasy, depicting a world under constant threat from monstrous beings​4​.
  5. The Twilight Zone and Black Mirror:
    • Anthology series that explore a variety of horror, science fiction, and surreal themes, often with a twist ending​4​.
  6. American Horror Story:
    • An anthology horror series, with each season exploring different horrifying themes and narratives​3​​5​.
  7. Stranger Things:
    • A blend of investigative drama alongside supernatural and horror elements, revolving around the disappearance of a young boy and the appearance of a girl with supernatural abilities​3​.
  8. Supernatural:
    • A series that follows two brothers as they hunt demons, ghosts, monsters, and other supernatural beings​5​.
  9. Penny Dreadful:
    • A horror drama series that merges classic literary horror characters into a narrative set in Victorian London (mentioned in one of the sources during browsing).
  10. Bates Motel:
    • A contemporary prequel to Alfred Hitchcock’s genre-defining film, “Psycho”, exploring the formative years of Norman Bates and his mother (also mentioned in one of the sources during browsing).

These series span a variety of horror sub-genres and styles, offering a wide range of eerie, frightening, and suspenseful viewing experiences.