Kathrine is Lance's older sister, and a vetran trainer. She moved to the Hoenn region several years before the beginning of the story, and moves back partway through. As a result of this, she has several Hoenn Pokémon on her team.
Kathrine has a very serious no nonsense personality, greatly contrasting with her brother's. After losing to the Hoenn Champion, she has a mild breakdown and loses her enjoyment of Pokemon battling.
Kathrine is very tall, measuring in at 6'6", with waist length black hair with side swept bangs that extend just past her chin, dark brown eyes, and pale skin. She wears a tight white short sleeved blouse, and dark blue jeans. When trying to hide her identity she wears a dark brown trench coat.
While in Hoenn she dominated the regional Pokémon League and the Elite Four, yet quickly lost to the Champion. Unable to overcome her loss she returns to Unova in an attempt to rekindle her passion for battle.
- Like her brother Kathrine owns Pokémon belonging to a Psuedo-Legendary Evolutionary line, her Metang abd Salamence. She is also the only character confirmed to own two Psuedo-Legendaries.
- Her Metang is also the only Psuedo-Legendary owned by a trainer that is not a Dragon Type.
- Kathrine is confirmed as the tallest character.
- Kathrine incridible hight is the result of Giantism, a medical condition that is the opposite of Dwarfism that causes a person to grow abnormally tall.