Fun fact: Boo Berry and Franken Berry are actually the same person. Think about it for a bit.

HOWEVER - they are not the same person so I disagree with you. Frank is clearly more a Karloff devotee vs Blueberry's Lorre appreciation :)

I'm still a little unsure about the double dipping of undead and ghosts but not enough to argue the point. Especially since 'What We Do In The Dark' established it with vampires.