|“||Aw. It even explodes cute.||”|
- Olivia Rodrigo as Paige Olvera
- Madison Hu as Frankie Wong
- Jake Paul as Dirk Mann
- DeVore Ledridge as Amelia Duckworth
- Ethan Wacker as Bernie Schotz
- Adam Haas Hunter as Viking Guy
- Maya Jade Frank as Belissa
- Ross Kobelak as Horse Face Guy (uncredited)
- Bizaardvark: The Night Dream
- Bizaardvark Subscribers: 164,923.
- This was the second Halloween themed episode in the series.
- No one was able to tell a scary story.
- The title is play on part two but replaces the two with boo.
| To view the Halloweenvark: Part Boo! gallery, click here.