Name: Jaymie Wilson
Personality: Jaymie has a witty, outgoing attitude and tends to get along well with people. She can get competitive in a playful sort of way, but doesn't like to let battles get to the point where emotions run high or people or pokemon get badly hurt. She's pretty confident and can often underestimate people and situations. If she's annoyed, she'll show it, but she generally keeps serious anger and sadness to herself.
Brief History: Jaymie was born into a pretty rough-and-tough family. She was really into pokemon battling as a kid and young teen, until she got into a serious fight with her sister in which both of them received broken bones, all of their pokemon were seriously hurt and one of her sister's was killed.
She was stunned and felt extremely guilty over what had happened, and wasn't sure if she wanted to continue being a trainer. She took a break from battling for a few years, and began hanging out in a friend's father's shop, where he made jewelery, and took an interest in the art. A couple years before the league, she found a burmy hanging out in the store and decided to train it and see if she could get back into battling. She's nervous about entering the league, but figures that as long as she takes it easy, things will be fine.
Pokemon: Bing ( Sawk )
Bing was Jaymie's first pokemon. Like his trainer, he's generally pretty upbeat and cheerful. However, he loses his cool a little too easily and has trouble knowing when to pull back and stop in a fight. Thanks to the fight years ago, his left shoulder is injured and he has trouble using his arm properly and defending himself.
Pokemon: Slope ( Kabutops )
Slope is a little bit twitchy and nervous. She responds badly to fear; she tends to have a "flight-or-fight" response and will do either one immediately and without thinking. She has problems with thinking straight in general, sometimes doesn't obey commands, and frequently gets headaches. She may have sustained brain damage in the battle with Jaymie's sister. She is normally quiet but communicates with Bing on occasion.
Pokemon: Boing ( Wormadam )
Boing has become Jaymie's main pokemon and the one she feels most comfortable using. She's laid-back, and much like Jaymie, enjoys battles without taking them too seriously. In general, she loves humans, hanging around them and observing them. She has a fondness for colorful clothing, and will occasionally snuggle up against someone she doesn't know because she likes the way they look.
(( Just a few edits: I added the type of Boing's Hidden Power, which I'd forgotten to do, and changed Bing's characteristic to "a little quick tempered", which I thought suited the personality I have in mind for him more. ))