Viola

Gym Leader who specializes in Bug-type Pokémon, also a professional photographer. She is the younger sister of Alexa.

[Spoiler] She defeats Ash in their initial gym battle due to her Surskit's sticky web strategy, and her Vivillon. Ash later defeats her after training to counter this strategy. She is a Duke at the Battle Chateau, and needs only one more win to become a Grand Duke. She loses the battle with Zakuro (Grant) for this title. [/Spoiler]