With the debut of Marvel's inaugural "Special Presentation" Werewolf by Night, Marvel Studios has effectively shined a light on the dark side of the MCU just in time for spooky season.
1. Agatha Harkness

2. Clea

3. Ghost Rider

4. Jericho Drumm (aka Brother Voodoo)

5. Man-Thing

6. Venom

7. Moon Knight

8. Doctor Strange

9. The Nightstalkers

10. The Morlocks

11. Magik

12. Daimon & Satana Hellstrom

13. Sabretooth

14. The Punisher

15. Enchantress
16. Doctor Doom

17. Loki

18. Hydra's D.O.A.
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For those who don’t read Marvel’s comics, specifically their limited “Fear Itself” storyline, Hydra’s Department of Occult Armaments are a group of villainous ghouls with demonic and terrifying creatures, including Lieutenant Belial, Rotwrap, Sin, and Malpractice, among others. While their tenure in Marvel’s canon was not exactly long, the D.O.A. left an impression among those who greatly enjoy Marvel’s creepier characters, and with a one-off streaming special, the D.O.A. could become the MCU’s eerie equivalent to the Justice League Dark.