From Bulbapedia, the community-driven Pokémon encyclopedia.
Katrina (Japanese: カクリ Kakuri) is a character of the day from the Pokémon anime who appeared in A Bite to Remember. Her English voice actress is Lisa Adams and her Japanese voice actress is 根谷美智子 Michiko Neya.
Katrina is a Pokémon Ranger and has three Mightyena and a Poochyena that she used to protect the Pokémon reserve Ash and company were in. At the end of the episode, her Poochyena evolved after fighting off Team Rocket.
She also takes care of injured Pokémon and nurses them back to health.