Hattersley Beattie.

Hattersley Beattie is the blue teacher of the Fuel Heroes and the female main protagonist; her skin is blue and her blue and pinkish black hair and only one eye, wearing a yellow and pink jewellery and crown, strangely coloured tattoos all over her body, and straps on her arms and hands, pink and yellowish gold jewellery, wears necklace and pink and yellow stripes bra that exposes her belly button, she has black of pink and yellow loincloth covered in her private part, with yellow and pink fingernails in fingers and toes, and wears a one fingerless pink glove.

Hattersley Beattie has two glowing pink moon disc-like blades to cut every things and mysterious foes and glowing knives that can cut as well.

She is a teacher, blue-loving female love interest, and struggled.

She is portrayed by Aubrey Plaza.