Tina is the deeply psychotic middle child of the Nelson family (between Walter Jr. and Binky), and her whole personality, appearance and demeanor echo the childhood of her idol, Scarlet Overkill (she wears pigtails...and while she doesn't have braces, she has all the self-image issues that Scarlet had as a child).  Which begs the question as to what her own future holds for her (and whether or not we'll see her someday going head-to-head against Gru!

Tina, for all her youthful exuberance, is a hardcore little girl, with a very rough edge.  You wouldn't know it just by looking at her--she presents the image of a very normal little girl.  But engaging her in conversation brings the risk of her snarky and often sarcastic responses.  And while she's becoming a capable villain in her own right, she's still on the learning curve, and occasionally makes mistakes.  Thankfully, her parents (Walter and Madge Nelson) are both very sympathetic and supportive, and want to see her prosper into a successful villain.