In Hey Arnold!, Helga Geraldine Pataki is a 4th grader who can be bossy and a bit of a tomboy. She’s secretly in love with Arnold, but shows it by teasing him as little children do.

Roger is the arch-nemesis of Doug and the primary antagonist of the show. A stereotypical bully, he goes out of his way to taunt or harass Doug whenever possible. Roger was held back several times, making him significantly older than the rest of the show’s characters.

Sid is one of Arnold’s classmates and best friends with Stinky and Harold. While not necessarily a bad kid, he is a bit of a troublemaker and has extreme paranoid tendencies. His pride and joy are his white winklepicker beatle boots.

In Rocket Power, Reggie Rocket is a 12 year old tomboy who is the sister of Otto. In addition to the outfit shown here, Reggie likes to wear a yellow helmet and turquoise gloves when she rides her skateboard or rollerblades.

Deborah “Debbie” Thornberry is the older sister of Eliza Thornberry, and daughter to Nigel and Marianne. Unlike her family, she has little excitement for the natural and wild world. Instead, Debbie wishes to live a normal suburban life, but is forced to travel the wilderness with her parents as they film nature documentaries.

In The Loud House, Lori Loud is a 17 year old girl and the oldest child of the large Loud family. As such she tends to be bossy and rude with her 10 younger siblings, including Lisa, Lenu, Luan, Luna, and Lincoln.