is this character a medically related person?
Yes - a surgical intern
Sadie Harris
 Introduced as a surgical intern who has an old companionship with the series' protagonist Meredith Grey (Ellen Pompeo), she eventually forms a friendship with Lexie Grey (Chyler Leigh), and departs after it is revealed she cheated her way into the surgical program.
who does melissa george play in greys anatomy Sadie Harris who is she in general? Melissa George is an Australian actress and entrepreneur. Sadie Harris is a fictional character from the American television medical drama Grey's Anatomy
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Sadie Harris [SEP] Introduction
Sadie Harris is a fictional character from the American television medical drama "Grey's Anatomy", which airs on the American Broadcasting Company (ABC) in the United States. The character was created by series producer Shonda Rhimes and portrayed by actress Melissa George. Introduced as a surgical intern who has an old companionship with the series' protagonist Meredith Grey (Ellen Pompeo), she eventually forms a friendship with Lexie Grey (Chyler Leigh), and departs after it is revealed she cheated her way into the surgical program. George was invited to meet with "Grey's Anatomy" executive producers after the show's casting agents saw her in the 2008 television drama, "In Treatment".