Season 1
(2025)
Cast
as Nathan (voice)
as Katherine (voice)
as Ben (voice)
as Esther (voice)
as Abaddon (voice)
Episodes
Welcome to the Undervale 7.5
September 19, 2025
Desperate to attract paying customers, Katherine hires an exorcist to get rid of the hotel's ghosts. Ben finds an unexp…
Unfinished Business 7.0
September 19, 2025
Katherine is concerned that a rebellious ghost is a bad influence on Esther. A power outage sends Nathan, Ben and Abadd…
Randy Slasher 8.0
September 19, 2025
While Katherine summons the courage to go out on a date, the rest of the crew deals with a creepy killer who targets lu…
How to Train Your Demon 7.0
September 19, 2025
Abaddon struggles to control his instincts, Katherine bumps into a business rival, and Nathan, Ben and Esther investiga…
Rollyfluffs 8.0
September 19, 2025
Esther's plan to become more popular backfires when she starts a dangerous new trend at school. The hotel's honeymoon s…
Ghost Hunters! 8.0
September 19, 2025
A ghost-hunting reality show films an episode at the Undervale. Ben opens up to an enchanted diary and shares all his r…
Seven Deadly Bens 7.0
September 19, 2025
Ben's desire to be more confident spawns multiple personalities. Meanwhile, Nathan keeps falling through floors... but …
Aunt Rose 7.0
September 19, 2025
A curmudgeonly relative comes to visit — with no plans to leave. Abaddon is outsmarted by a doorstop, and Esther experi…
The Esthercist 9.0
September 19, 2025
Esther takes charge when soul-sucking demons invade the hotel. Katherine shares a painful truth with Nathan about his d…
The Acolytes of Abaddon 8.8
September 19, 2025
The good news? There's a busload of red-cloaked customers who want to stay at the Undervale. The bad news? They might b…