Jigglypuff: Achiro - afraid of sharp things

Clefarie: Ogden - very butch, male or female

Paras: Tweak - constantly afraid that the mushrooms on its back are invading its brain... the other pokemon think its crazy and paranoid for thinking so

Geodude: Rocky the Paladin - enough said

Zubat: Neo - believes it will break the fifth wall - it does so when it begins to evolve into Crobat, and gets glimses of what it calls The Beyond each time it tries to evolve

Nidoran (either): Peppi - tormented by the fact that it will poison other pokemon on contact, but it desperately wants to be loved