Penny and Lou

Appearance: A pretty girl with neat features; she has light hair, often styled in curls or ponytails; her gaze is lively, energetic, and occasionally glimmers with mischief.

School uniform: Standard school clothing for girls: a skirt or sundress, a blouse, and neat shoes; it looks neat, but not too formal—the look emphasizes her spontaneity.
Personality: Arrogant and mocking - loves to make fun of Sherman.

Appearance: A guy with a round face, large expressive eyes, and short light brown hair; he often looks a little confused or excited, depending on the situation.

School uniform: Wears typical schoolboy clothing: a shirt (often with a collar), trousers, and sometimes a jacket; the look is simple and neat, without any pretentious details.

Personality: Inquisitive, impulsive, and kind; sometimes gets into trouble for wanting to try everything, but genuinely tries to do the right thing; very attached to Mr. Peabody (his father) and values ​​his support.

Kitty
Appearance: Kitty has rosy fair skin, pink hair in low pigtails, and light blue eyes. Like the other Perfection dolls, she wears a prep-style uniform.

Personality: Kitty is the leader of the Spy Girls. She's sarcastic and sassy, ​​but also the least sensitive of the three: she can prank her friends and feel no guilt if she offends someone. Another trait is that she enjoys impersonating Lou, which suggests she's not as enamored with him as Tuesday or Lydia, but that's not really the case.

Tuesday
Appearance: Tuesday has warm ivory skin, short light blue hair (neck length) with square bangs that hang over her eyebrows, and light blue eyes. In normal scenes, she wears a prep uniform.

Personality: Tuesday is dreamy and forgetful. She tries hard to impress Lou, even though he clearly doesn't share her feelings. She can be sarcastic with her friends, but she's easily distracted and confused.

Lydia
Appearance: Lydia has brown skin, purple hair pulled back into a low ponytail, and golden-brown eyes. In normal scenes, she wears a prep uniform.

Personality: Lydia stands out among her friends for her greater emotionality. She's capable of deep emotions: for example, she burst into tears when she learned that Kitty had stolen her earrings. She's also sarcastic, like the others, but she's more empathetic.

Appearance: A puppet in the form of a young man. He has fair skin, light hair (but dark, almost black eyebrows), and a short hairstyle parted to the right. At the beginning of the film, he wears an elegant black two-piece suit with gold cufflinks and a purple checkered tie, and black business shoes.
Personality: Straightforward, arrogant, and rude, resembling a school bully. He openly disparages the Uglyville dolls, calling them "ugly."

Lou is the leader of the Institute of Excellence, and is loved by absolutely everyone despite his character.