User blog comment:Lord O' Darkness/HTF Fan Series in the works/@comment-26840856-20150820211407/@comment-26840856-20150821232152

Well, both Tricksy and Unicornius make a cameo in Pet Peeve, so maybe that they can be considered canon characters.

FatKat's appearance is very good, he could appear in the fan series as a main character, with this concept; he could be very greedy with junk food, best friends with Nutty, and rarely survives.