#27: Ellen Latzen as Ruby Sue
Ruby Sue is the sweet, spirited cousin who brings innocence and honesty to the Griswold family chaos. Her wide-eyed reactions, heartfelt moments, and funny observations make her one of the film’s most memorable kid characters. She adds a touch of genuine warmth that softens even the wildest holiday mishaps.
As a child actress at the time, Ellen Latzen was gaining attention for her earlier role in Fatal Attraction. She was quickly becoming recognized for her natural reactions and grounded performances. Landing Ruby Sue allowed her to showcase a lighter, more playful side that contrasted her more dramatic work.