...man I have a lot of these. Yes across the board.

Muu-chan is a youkai that looks like a weird green plushie. She doesn't say anything other than "muu" but she understands everyone else and is probably smarter than her husband, Sugino.

Ampersand is a capuchin monkey belonging to Yorick, but an ordinary one, so.

Boota is a molepig who hangs with Simon and who seems to get what's going on most of the time.