Subject: I'm late to this, but here's my two cents.
Author:
Posted on: 2016-07-16 18:12:00 UTC
I've RPed with K'eth (both the user and the character); K'eth the character honestly doesn't seem like too much of a Gary Stu to me. From what I understand, he's an anthropomorphic personification of imagination; his reality-altering abilities are an extension of that.
As for a personality: he's a trickster god. He delights in screwing with people, and thinks that (among other things) angry demigods are the most hilarious thing he's ever seen. He never causes or intends lasting harm; he's an all-powerful prankster who hates boredom and dullness.
Sues meet their goals without effort... K'eth just happens to not really have any goals beyond his own entertainment. He's a creature of whims, with no far-reaching ambitions or plans. All he wants to do is make life more interesting (even if that involves randomly turning into a girl and making out with someone, which he has done before).
Is he fit for duty as a PPC agent? Absolutely not. While not truly a Stu (at least in my mind), he's still a reality-warper and he probably wouldn't get along with the Flowers. He's too powerful for Action departments, and unlike Jenni he wouldn't keep his powers in check because he'd probably be eternally bored without them.
I can't really speak for the rest of K'eth's OCs; I'm not as familiar with them as I am with the Embodiment of Imagination.