Helga is definitely one of the angriest characters in Hey Arnold!, but she's not all bad...

All four founders of Hogwarts in Harry Potter made contributions to the magical institution. Here's what Helga Hufflepuff gave to the school.

Helga became a favorite among Vikings fans thanks to her compassion, loyalty, and independent nature. So why was she killed off? Let's take a look.

Hey Arnold! followed the daily adventures of Arnold and friends, but what if he wasn't the protagonist of the series, and instead it was Helga?

Hey Arnold! introduced a boy with football-shaped head and his bully, Helga Pataki. However, she's not the real bully in the series: it's her parents.