- Adored by the Network: Earlier on, Disney Channel loved this show a lot and even treated it better than Tangled: The Series, which hadn't been done with an animated series on the network in a while.
- On July 2, 2017 (exactly one week after its premiere), Disney Channel aired a 2 1/2 hour marathon and live tweeted during the marathon. There were about 25 tweets posted during the event.
- Slightly subverted due to the fact that the second half of the first season debuted on Netflix in June of 2018 before it arrived on Disney Channel.
- Cross-Dressing Voices: Mavis' Aunt Lydia is voiced by a man, Dan Chameroy.
- He Also Did: Series director Robin Budd has done quite a bit of work on other horror-themed comedies from Nelvana.
- Invisible Advertising: Started suffering from this come the second season, as Disney Channel went from barely advertising it October 2019 (along with not even announcing a new season had started) to none whatsoever a year later.
- The Other Darrin:
- None of the original actors reprise their roles due to the series being produced in Canada. Given this is a TV series based on a movie series, it's pretty much par for the course.
- In Season 2, Ivan Sherry replaced David Berni as the voice of Dracula.
- Relationship Voice Actor:
- Mavis, Pedro, Wendy Blob, Quasimodo, and Klaus are Taylor, Ryan, MacArthur, Owen/Jacques/Brody, and Noah/Ennui/Spud. Additionally. Mavis, Quasimodo, and Klaus were all also in the original Total Drama as Amy/Samey, Owen/Trent, and Noah.
- Mavis and her cousin Klaus are Suzi and Jordan Buttsquat.
- Role Reprise: In the Canadian French dub, Dracula and Frankenstein are voiced by Alain Zouvi and Patrick Chouinard respectively, reprising their roles from the Hotel Transylvania movies.
- Screwed by the Network: Got stuck in an early morning timeslot with no advertisement for the second half of season two in October 2020.
- Short Run in Peru: The rest of the first season wasn't broadcast on U.S television until October 2018.
- Talking to Himself: Dan Chameroy voices both Aunt Lydia and Dr. Gillman, who interact with each other on a few occasions.
Trivia / Hotel Transylvania: The Series