Dixie

Dixie turns up as one of the many small, sharply-drawn faces that populate the fringes of the Planet Express universe — a quick voice in a crowd scene, there to deliver a line or a laugh before the plot moves on without her.

Tress MacNeille built a career on exactly this kind of part, and it shows: she gives Dixie a distinct comic shape in almost no screen time, the sort of vocal performance that makes a background gag feel like a fully realized person rather than filler.