Katherine is implied to be of Scottish or Irish descent with slightly sharp facial features, waist-length beige-blonde hair, brown eyes, thick black-rimmed glasses which are rimless at the top and she also wears blue nail polish with violet eyeshadow.

She wears a black turtleneck sweater with vertical blue lines on the lower half, which is rolled up to show a bit of her forearms, black pants, a blue jeweled accessory around her waist, and black high heels.  