Paul

Biography
Paul is a rather arrogant trainer. From Veilstone City, he headed to Sandgem to get his starter, he has since travelled through Kanto, Johto & Hoenn. However, he is not a caring trainer, what he wants from his Pokémon is pure power and the trainers he faces to be strong. When he first meets Ash, he demands a 3 on 3 Battle, however since Ash was still looking for Pikachu, Ash couldn't battle, this warranted some aggrivation on Paul's part. Paul is also known to release his Pokémon if he deems them weak or useless.

Pokémon
As a result of Paul's selective team creation, his active team is composed of Pokémon that he deems to be powerful. While the captures of Ursaring and Gliscor were shown in Different Strokes for Different Blokes and Riding the Winds of Change! respectively, the rest were obtained off-screen. The On-hand Pokemon List contains Paul's Pokemon whom are currently used by him in the Sinnoh League(against Ash).

Trivia

 * Interestingly, Paul's hometown is Veilstone City, which is also where Team Galactic's base was set up. Also interesting to note is that, in the games, you can only evolve Murkrow by use of the Dusk Stone, which is only available inside of said base.
 * Paul has an older brother named Reggie