Helga Pataki is a tough, outspoken fourth-grader whose fierce personality hides a much softer side. She constantly teases and bullies Arnold Shortman, but secretly has strong romantic feelings for him and expresses them through poetry and elaborate private shrines. Helga is also intelligent, athletic, creative, and fiercely loyal when someone she cares about is in trouble. Her complicated family life and emotional struggles give her a depth that makes her one of the most memorable characters in Hey Arnold!.