Darcy is Lisa Loud’s sweet and cheerful best friend. Unlike Lisa, who is highly intellectual and serious, Darcy is more carefree and innocent, bringing a refreshing balance to their friendship. She admires Lisa’s intelligence and often joins her in various scientific experiments, even if she doesn’t always understand what’s going on. Darcy’s bubbly personality and kind nature make her a delightful presence in Lisa’s life, helping to bring out a more playful side of the usually focused and serious young genius.