Aldith appears in the Pokémon anime series during the Unova region storyline as a high-ranking member of Team Plasma, evident through her command over other grunts. She debuts within the N arc. Operating across Unova while Ash Ketchum and his companions travel the region, her first known assignment involves assisting Colress at the Sangi Town observatory. There, they collect electric energy from Pokémon, amplifying it in an experiment aimed at controlling them; Aldith expresses palpable excitement over the project's potential.

She actively commands Team Plasma grunts during missions, successfully coordinating efforts to delay interference from Ash Ketchum and International Police agent Looker. This tactical maneuvering allows Colress to complete critical data collection. Aldith holds a dismissive view of the International Police, considering them incompetent due to their unfamiliarity with Team Plasma's operations.

Her personality is stern and demanding, expecting strict obedience from subordinates. Aldith demonstrates unwavering loyalty to Team Plasma's chain of command, diligently following Ghetsis's orders. She utilizes a Liepard in her activities. Visually, her design draws directly from the Female Neo Team Plasma Grunts featured in the Pokémon Black 2 and White 2 video games.