High Quality Content by WIKIPEDIA articles! Cristina Yang-Hunt is a fictional character from the medical drama television series 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 is portrayed by actress Sandra Oh. Introduced as a surgical intern at the fictional Seattle Grace Hospital, Yang worked her way up to resident level, eventually becoming a cardiothoracic surgical fellow, while her relationships with colleagues Meredith Grey (Ellen Pompeo), George O`Malley (T. R. Knight), Izzie Stevens (Katherine Heigl), and Alex Karev (Justin Chambers) formed a focal point of the series. Yang was once engaged to Preston Burke (Isaiah Washington), had a relationship with renowned surgeon Colin Marlow, and has since been wed to Owen Hunt (Kevin McKidd). During the series, Yang mentions she attained a Ph.D. from the University of California, Berkeley and an M.D. from Stanford University School of Medicine.