Invasa

Invasa turns up as one of the many one-off aliens populating Futurama's sprawling universe, a minor figure dropped into Fry, Leela and Bender's orbit for a single adventure. She speaks with the brisk confidence of someone convinced her own logic or culture is self-evidently correct, needling the crew simply by existing.

The character works because Tress MacNeille treats even a small, disposable role like a real performance, giving Invasa a distinct cadence rather than a generic alien-of-the-week voice. Futurama's gag density means even minor characters get one sharp, memorable line, and MacNeille's vocal precision makes that line land.