Heidi Hutchins

Heidi Hutchins is the little sister of Harold Hutchins. She only appears in Captain Underpants and the Preposterous Plight of the Purple Potty People and Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot.

Captain Underpants and the Preposterous Plight of the Purple Potty People
She sees Giant-Evil Sulu in the yard.

Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot
Present Harold and George, who are still sick, witness what Mr. Meaner is doing; however, they can't smell, so the stench has no effect on them. Harold and George are almost better, and that isn't a good thing, so they go to their parents, who are having dinner with Heidi and the boys' yesterday counterparts. George and Harold's parents talk about how their now-brainwashed yesterday counterparts are a big improvement over their past behavior. Feeling betrayed and rejected by their own parents, the present counterparts leave in a deep depression.

Trivia

 * Despite Grace Hutchins making multiple appearances in The Epic Tales of Captain Underpants, Heidi's existence is never acknowledged. In a comment's reply for one of his behind-the-scenes videos, show producer Todd Grimes stated that the writers' difficulty developing a storyline to introduce Heidi is the main reason for her current absence from the series.