Sharon, referenced as Karen in Japanese-language materials, works as a researcher for the Biotope Company under Dr. Zed. Her primary responsibility is supporting Dr. Zed's scientific studies of the Forest of Okoya, specifically investigating the jungle's regenerative properties.

During her employment at Biotope Company, Sharon uncovers Dr. Zed's unethical objectives to exploit the jungle's healing energies, disregarding the resulting harm to the ecosystem and its Pokémon. Upon learning his harmful intentions, which include weaponizing their research and causing ecological damage, she terminates her professional relationship with him, reflecting her ethical opposition to endangering the jungle.

After departing the Biotope Company, Sharon's subsequent actions and whereabouts remain unknown. Her potential involvement in countering Dr. Zed or aiding jungle preservation is unspecified. Details regarding her background prior to joining Biotope, her physical appearance, and personal characteristics are unavailable.

Sharon's documented character development centers on her shift from a compliant researcher to an individual rejecting unethical scientific practices. No further appearances or developments in other Pokémon media are documented.