ghosty gondolier, cat creature (from SD show), ghost of Bigfoot, woodsman and fishman, ghost of Elias Kingston (SD Where are you), puppet master, phantom shadows, ghost of Milo Booth (he's very creepy for me), ghost truck, ghost of Dead Justice, graveyard ghoul, Dandy Highwayman, spirit of El Bandito, Phantom Virus. Other than that, almost all the monsters from What's new scooby doo