Despite being best remembered as the episode that brought us the classic Ralph Wiggum quotes "I bent my Wookiee" and "My cat's breath smells like cat food," 1994's "Lisa's Rival" also features Winona Ryder as new student Allison Taylor. Lisa feels threatened because Allison is equally smart and talented — but also a year younger. The two girls' rivalry climaxes at Springfield Elementary's diorama competition, Dioramarama, where Lisa uncharacteristically sabotages Allison's entry.
The Best 'Simpsons' Guest Stars
From regulars like Kelsey Grammer to one-offs like Winona Ryder, stars love Springfield.