Fay Mastersonis portraying Gail Jones in the Fifty Shades of Grey movies.
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Masterson's performance career began as a dancer which she gave up at age 11 after being cast in The New Adventures of Pippi Longstocking. Masterson started her acting career as a child actress at age 14 with her first appearance as Head Girl in The New Adventures of Pippi Longstocking, a fantasy-adventure, musical, family film based on the books by the late Astrid Lindgren. Fay originally auditioned for the role of Pippi Longstocking, but the role went to her former co-star Tami Erin. Since then she has appeared in over twenty-five films and over thirty-five television productions. She has additionally voiced characters in several video games.
These roles include guest appearances on the television series Jupiter Moon (1990 and 1996), Casualty (1993), Game On (1996) and The Ruth Rendell Mysteries (1991).
She has appeared in American films including The Power of One (1992), The Man Without a Face (1993) and A Christmas Carol (2009). She is currently playing the role of ship's Executive Officer, CDR Andea Garnett on TNT's The Last Ship.