Posso Mask: Posso is the commander of the Controller Staff, a powerful magical item capable of controlling any living or non living thing that bares the same mark as that on the staff. If Posso can somehow get that mark on you, you're his!
Mosho Mask: One of the more reserved members of Bad Mask, Mosho has a direct link to the keepers of the Yokurai river, said to be a pathway to the dream world. Mosho has a number of dream-related powers such as access to dreams, and the ability to cover vast distances using peoples' dreams as conduits.
Spectra Mask: The wife of the late Greggory Mask, one of the oldest members of Bad Mask. Very late in his life, Greggory realized the secret to becoming a physical specter and left intense instructions for his wife (who was, at the time, not a member of Bad Mask) on how to prepare his remains so that she could summon his physical specter.