Big eyes, toothed mouths

Hi!
Some time ago I thing in put multiple characters who have certain characteristics, and these are those containing one of my favorite characteristics, Everybody (except Jack D'ooh) have characteristics of jack-o'-lantern!

Sorry for the watermark xD but I know why...

Blitzwing - Transformers Animated
Jackle - NiGHTS intro Dreams
Neuro - Majin Tantei Nougami Neuro
Haunter - Pokemon
Demongo - Samurai Jack
Jack - The Grim Adventures of Billy & Mandy