The Mictian is part of a legion of demons that have been following Xavier Dolls since Kabul. They can possess people until it can permanently fuse with their body. The Mictian possessed Waverly Earp for a while, but didn't become a threat to the Earp gang until it jumped into Wynonna Earp and took Waverly captive. The demon claimed that controlling Waverly was too difficult and needed a new host. Waverly forced the Mictian to return to her body so that it could be killed by a Peacemaker wielding Wynonna. The Mictian's plan was to use the collected metal in the Earp barn to attract lightning and permanently fuse with Waverly's body. Wynonna was able to expel the demon from Waverly and kill it.
- Demon Eyes: Humans possessed by the Mictian will have completely black eyes when Mictian is in control.
- Super Strength: This ability is shown by Gooverly lifting and choking Tucker Gardner with one hand.
- Limb Regeneration: Gooverly got a hand cut off and Goononna got a pinky cut off. Both body parts regenerated due to the Mictian.