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Marie Vincennes is a character from a card based role playing game. She is an American Eva pilot, but lacks any actual battle experience. A prodigy with a P.H.D., she acts meek and polite, but in actuality is haughty and domineering. Something of a reverse on Asuka's personality.
Vincennes is the name of four different U.S. naval vessels, all of which are no longer in service.
The RPG game from which she originates only goes up until the Tenth Angel, Sahaquiel, following the story before diverging into two Angels designed solely for the game. Without Unit-03 becoming Bardiel, it stands to reason for the purposes of the game, Marie is the Fourth Child and not Toji Suzuhara.