Vampirina's friend Bridget has a cat named Ms. Cuddlecakes, and in Take Your Pet to the Vet/Master and Commander (2015), there is also a cat with the same name at the vet. Both shows were created by Chris Nee.
Besides Vee herself, Poppy is the only character to appear in at least one segment of every single episode.
Vampirina's fear of baby cows was mentioned in the episodes, Hiccupire and Bridget The Brave.
Vampirina's family run a bed & breakfast for monsters called Scare B&B. Lauren Graham's character(who plays Vee's mom) in Gilmore Girls also ran a bed & breakfast.