Family: Unnamed father (deceased), Tess (mother), Anna (sister)
Harry is a 7-year-old boy that loves annoying his sister in many ways. Although he loves Anna, as mentioned in his English text, Harry tells Tess (in Anna's body) to not tell it to Anna because he said they have too much fun fighting.
Waking Anna up with a gas air horn, wearing her bras, or crashing drumsticks against her guitar, Harry never gets tired annoying his big sister.
Due to his conflicts with (and bratty behavior towards) Anna, Harry is sometimes depicted as the main antagonist of the first half of the film. However, he is not a true antagonist and is more of an anti-hero.
- "Look, I'm a walrus!"
- "Get a room!"
- "It's twenty blocks!"
- "Are you sick?"
- "Earthquake! Save me! Earthquake!" (mocking Grandpa)
- "(Reading diary) I don't think he knows I even exist, it's so stupid thinking about him, but I can't help it."
- "Jake! Ooooh! Jake!"