There's also Kira in the most recent episode, and there's a guy whose name I don't remember taking a shower in Part 6.
And the Pillar Men, who are only semi-nude.
The pillar men might be an issue? Please avoid posting spoilers directly in the title! Other than that, there's Lisa Lisa bathing, but you don't really see anything, there's Holly, but once again, everything is covered, and Anne, which is kinda squicky, but doesn't last very long.