The Hollywood Reporter revealed on Monday that Katherine Waterston has been cast as Porpentina, aka Tina, in Fantastic Beasts and Where to Find Them. Queenie who, as we shared in this post, is Tina’s younger sister has yet to be cast.

According to Warner Bros., Porpentina meets magizoologist Newt Scamander (Redmayne) when he stops in New York City on his travels to find and document magical creatures.

J.K. Rowling posted the following comment on Twitter:

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