#trainer eusine

Looks and is mentally stable: Bugsy and Whitney. They're really mostly just normal. The two have no doubt experienced various hardships before but they don't have as much trauma in comparison and they cope with it relatively well by standing their ground and carrying on.

Looks mentally unstable but isn't: Eusine. I mean, his obsession with Suicune and just the way he dresses kinda makes you think he is just ever so odd but in reality, he's mostly normal aside from his giant ego and even bigger special interest. Just kinda chill most of the time even if he's really weird.

Looks mentally stable but isn't: Falkner. I could go ON AND ON about this. Falkner (in my headcanons at least) has SO MUCH trauma and his dad's death basically shattered his entire world view and his own sense of identity in a way because he's looked up to his father so much throughout most of his life but is it still right to do after he's learned about all the pain he inflicted onto him? He also just has a slew of insecurities and issues still even if he's mostly healed. As a result, he tends to put on an elegant, cool, and confident facade to his insecurities. It is partially genuine IMO and he's had the "Elegant Master of Flying Pokemon" shtick down even before his father died but he plays it up especially after because he wouldn't want others to see how much of a wreck he truly is, would he.

Looks and is mentally unstable: Morty. From the bat. I can see how most people would see him as someone weird or off-putting due to his stature and his affinity with spirits among other things and his obsession with and interest in Ho-oh really doesn't help his case LMAO. These exact kinds of assumptions and generalizations however, are ironically what caused the bulk of his problems as he was ostracized as a child because people thought he was a "bad omen" (and it also doesn't help that his parents were busy and often neglected him). Then there was his failure to catch Ho-oh, which devastated him greatly not just because it was basically his life goal back then but also because he faced a lot of scorn from the people of Ecruteak once word of his defeat spread. All of this trauma basically just gave him so many issues that even now, still destroy him occasionally.