Louisa

Louisa is a soft-spoken mutant living in the sewers beneath New New York, spotted by Leela during an investigation into her own origins. She works quietly, keeps to herself, and seems wary of outsiders poking around her world. There is a guardedness to her, a sense of things left carefully unsaid.

Tress MacNeille plays her with a plainness that rewards close attention — no theatrics, just a weary tenderness held just beneath the surface. It's a small, unshowy performance in a show built on jokes, and that restraint is exactly what makes Louisa linger once the episode is over.