The ghosts and ghouls of the Orlock are spooked when a mysterious visitor appears and reveals a tie to Bunnicula's past.
After Bunnicula's brother is stricken with the feeling of love, he flies off when Harold states he needs to process it. The pets go inside, where Chester criticizes Harold and Bunnicula on not listening to his warning and states they wouldn't need to go through trouble with that. Harold and Bunnicula agree but say they would miss out fun if they did. Bunnicula starts draining a carrot until Mina walks in and spots his bat wings. She questions the sight, as the pets are worried that she finally learned his secret before Bunnicula admits to being a vampire. Mina is surprised but accepts her pet regardless, to the pets' joy.
- Mina Monroe
- Arthur Monroe
- Knight Owl
- Lil Capone (non-speak)
- Patches the Weredude
- Hideous Thing
- Rusty Bones (non-speak)
- Giant Cockroach (non-speak)
- Bat Monster (non-speak)
- Minotaur (non-speak)
- This is the last episode to air in 2018.
- It was originally called "O'Brother!".
- Things that are revealed in this episode:
- Bunnicula has a younger brother.
- Bunnicula considers Chester and Harold as his brothers.
- Arthur's full face is shown for the first time.
- Mina finally learns the truth about Bunnicula's vampire nature.