Julia Joyce

Julia Joyce (born 14 June 1998) is an actress, known for her three appearances as a younger version of Billie Pipers characters in Doctor Who (Fathers Day), Ruby in the Smoke and Mansfield Park. She is also the younger sister of the actress, model and Petits Filous advert star Lucy Joyce; Julia later went on to become the face of Petits Filous in her own right.

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