Personally, I think Seekers and Keepers alike should have fangs. >.> Keepers of course notably sharper and more pronounced because, heyooo, lore-wise that's how it should be. But even Seekers should have little stubbly nubblins because, HI, CATS. CATS HAVE SHARP TEETH YES. But I think that's a detail that was overlooked by the design devs, and should be thrown back in.
Or, at least, a 'canine' slider option, so that way if you like a particular mouth but don't/do necessarily want fangs, you can choose them at will.