<Tr> <Td> Andrew DeLuca </Td> <Td> Giacomo Gianniotti </Td> <Td> 12, 13, 14 </Td> <Td> 11 </Td> <Td> General Surgical Intern </Td> <Td> M.D. </Td> </Tr> <Tr> <Td_colspan="7"> Andrew DeLuca was an EMT before he decided to switch to being a surgical intern in Season 12 . Soon after his internship begins, he starts a relationship with Maggie Pierce, but that ultimately ends when he doesn't have feelings for her anymore . In Season 14, his ex-girlfriend, Sam Bello, joins Grey Sloan, and they resume their relationship briefly before she leaves the hospital to avoid deportation . </Td> </Tr> <P> The following listings reflect each character's status at the time of his or her first appearance on staff at Seattle Grace / Seattle Grace Mercy West / Grey Sloan Memorial . </P> <Table> <Tr> <Th> Name </Th> <Th> Actor / Actress </Th> <Th> Season (s) </Th> <Th> Episode count </Th> </Tr> <Tr> <Td> Dr. Virginia Dixon </Td> <Td> Mary McDonnell </Td> <Td> 5 </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="5"> An exceptional cardiothoracic surgeon who has Asperger syndrome, Dr. Dixon serves as the interim Head of Cardiothoracic Surgery in Season 5 . </Td> </Tr> <Tr> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Dr. Rebecca Swender </Td> <Td> Kimberly Elise </Td> <Td> 5 </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="5"> A surgical oncology attending assigned to oversee Izzie Stevens' cancer treatment, Dr. Swender is said to be the best surgical oncologist in the state of Washington . She is a proponent for IL - 2 - use as treatment for cancer, citing its success when a patient, initially given only three months to live, uses the therapy and survives an additional two years . The patient, however, succumbs to complications from the inherent nature of the IL - 2, which affects Swender's otherwise authoritarian and impartial persona, and casts doubt on this treatment - protocol . </Td> </Tr> <Tr> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Dr. Margaret Campbell </Td> <Td> Faye Dunaway </Td> <Td> 5 </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="5"> A general surgery attending, Dr. Campbell is Seattle Grace's first female surgeon . With 40 years of surgical experience, she is considered a pioneer and one of the hospital's most respected surgeons . Richard Webber may have been taught by her, which is implied when she recalls an incident involving a clamp dropped into an open body cavity . She has worked with Ellis Grey . Cristina Yang has been vocal about her objections and criticisms of Dr. Campbell's continued long - standing service . Due to a complication caused by a lacerated bowel during a routine cholecystectomy, Dr. Campbell retires after performing her last surgery to repair the "careless mistake ." </Td> </Tr> <Tr> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Dr. Robert Stark </Td> <Td> Peter MacNicol </Td> <Td> 7 </Td> <Td> 7 </Td> </Tr> <Tr> <Td_colspan="5"> An incompetent pediatric surgery attending, Dr. Stark is brought in as the interim Chief of Pediatric Surgery when Arizona Robbins gives her notice to oversee a pediatric surgery program in Malawi, Africa . Under contract for a year, Dr. Stark continues to serve as the department chief when Robbins returns . Described as a lazy doctor and a complacent and self - satisfied attending, he represents the antithesis of attending surgeons commonly employed at Seattle Grace / Mercy West Hospital . Dr. Stark has an antagonistic disposition with most of the hospital staff, especially Alex Karev. April Kepner is the only exception to his behavior . He later attempts to date her, with little success . </Td> </Tr> <Tr> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Dr. Lucy Fields </Td> <Td> Rachael Taylor </Td> <Td> 7 </Td> <Td> 8 </Td> </Tr> <Tr> <Td_colspan="5"> An OB / GYN attending and maternal - fetal medicine fellow at Seattle Grace Mercy West, Dr. Fields is self - proclaimed "damn good at her job ." She attended Harvard Medical School and completed her OB / GYN residency at Duke University Medical Center . Dr. Fields is Callie Torres' obstetrician and shows that she is equal parts tough, ironic, and empathetic, especially when dealing with Torres and her support team: Mark Sloan and Arizona Robbins . She seems to have a slight crush on Alex Karev, and they begin to form a relationship . Dr. Addison Montgomery returns and is told that she is not able to deal with traumatic pregnancy cases (such as a pregnant Callie involved in a car accident). Alex Karev breaks off his relationship with Dr. Fields in the Season 7 finale, and she goes off to treat children in Africa . </Td> </Tr> <Tr> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Dr. Nicole Herman </Td> <Td> Geena Davis </Td> <Td> 11 </Td> <Td> 13 </Td> </Tr> <Tr> <Td_colspan="5"> Nicole Herman is introduced as the Head of Fetal Surgery at Grey Sloan Memorial Hospital . Arizona works with her as a fellow to switch from Pediatric Surgery to Fetal Surgery . It is then revealed that Herman has an inoperable brain tumor and only has 6 months left to live; as a result, she decide she wants to use this period of time to teach Arizona about Fetal Surgery since it is a new field . When Amelia informs Herman that she believes she could remove the tumor, Herman initially rejects the idea until deciding it's what's best . Amelia operates and, despite some complications, successfully removes Herman's tumor . However, Herman doesn't wake up for several days after the surgery, leading Amelia to look for a cause . An MRI shows signs of a stroke, and when Herman finally wakes up, though she is fully aware of her surroundings and shows no loss of mental faculties, she becomes completely blind . After being discharged from the hospital, Herman goes to the Blind Institute, where she learns to live her daily life as a blind person . In Season 14, Herman returns to the hospital in fear that her tumor has returned, but it turns out just to be a cyst . Herman then offers Arizona an extraordinary opportunity to start the Robbins - Herman Center for Women's Health, which they will institute in New York City . </Td> </Tr> </Table>

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