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View the latest pictures, photos and images of Sienna Guillory - Sienna Guillory is the daughter of American folk guitarist Isaac Guillory and Tina Thompson, an English model. Guillory's parents encouraged her to express herself artistically as she was growing up and this lead to her decision to become an actor. She was educated at Gresham's School, Holt, Norfolk, England and appeared in school plays... See full bio