Maggie Pierce
fictional character from the television series Grey's Anatomy
Margaret "Maggie" Pierce, M.D., F.A.C.S., is a fictional character from the medical drama Grey's Anatomy, which airs on the American Broadcasting Company (ABC), portrayed by Kelly McCreary. Created by series producer Shonda Rhimes, Maggie first appeared in the penultimate episode of the show's tenth season and was promoted to a series regular by the eleventh season's eleventh episode. Her character is revealed to be the biological daughter of Richard Webber (James Pickens Jr.) and Ellis Grey (Kate Burton), making her the half-sister of series protagonist Meredith Grey (Ellen Pompeo).
Maggie is characterized as "perky" and "chatty" but also extremely focused on her academic career. She was a child prodigy, having graduated from medical school at the remarkably young age of 19, and by the time she is introduced in the series, she has become the head of the cardiothoracic surgery department at just 27 years old.
Storylines
Maggie is introduced in the 23rd episode of the tenth season of Grey's Anatomy, during Cristina Yang’s search for her replacement as the head of Cardiothoracic Surgery. Maggie, a prodigy who finished high school and medical school by the age of 19, became the head of her department at 27. In the Season 10 finale, titled “Fear (Of the Unknown)”, it is revealed that Maggie’s biological mother is Ellis Grey, making her the half-sister of Meredith Grey. Richard Webber, who had an affair with Ellis, is stunned by the news, realizing that he is Maggie's biological father.
Throughout Season 11, Maggie navigates her new role at Grey Sloan Memorial Hospital while dealing with her complicated family history.
“Maggie Pierce” enters the record as fictional character from the television series Grey's Anatomy. Crown Archives preserves that source wording while asking what Maggie, Pierce and fictional can confirm, complicate or overturn.
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Object files, edition statements, performance records and contemporary criticism preserve different stages of the work’s history. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q22678832. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Maggie Pierce” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.