Actor Allusion: In the dub, The Baron asks "Scared, were you?" in exactly the same tone as Westley does. Also from the dub, before heading for school Haru considers her appearance in the mirror and comments, "Whatever," similar to Mia and her comment, "This is as good as it's gonna get."
Dawson Casting: Anne Hathaway, the voice of Haru in the English dub, was a 20 year old playing a 13 year old, as well as Chizuru Ikewaki, the Japanese voice of Haru, who was 21 at the time of her role.
Fix Fic: Go under the Cat Returns section of Fanfiction.net, and within five minutes, you will have found several dozen fics where Haru stays in/returns to the Cat Kingdom. More often than not, she will have married Baron.