99.99% of them have fangs, ill just get that out of the way

sergei has small fox-like teeth
evelyn has spider fangs + really sharp back teeth
nephralis has overbite fangs and cat-like teeth
barbs has discolored teeth from alcohol

boombox has sharp teeth + a gold tooth. not that he needs it, its just for extra sparkle
heartsongs were probably still a lot of baby teeth
arctic, again, has fox-like teeth
flintlock has normal teeth, and a gold tooth as well- but he actually needs that since he lost his tooth
pickaxe. i mean. you can see his teeth. big ol chompers despite being a goat