Alexandra Caroline "Lexie" Grey, M.D. is a fictional character from the ABC medical drama television series Grey's Anatomy. The character was created by Shonda Rhimes and is portrayed by Chyler Leigh.
She was first mentioned in Season 2 before being introduced in Season 3 as the half-sister of protagonist Meredith Grey (Ellen Pompeo). Leigh was initially contracted for a multi-episode story arc but received star-billing from seasons 4 through 8. She also reprised her role on the spin-off series Private Practice.
Characterized by Rhimes as a "dork" with issues expressing her feelings, Lexie transfers to the fictional Seattle Grace Hospital as a surgical intern following the sudden death of her mother, Susan Grey (Mare Winningham). She eventually progresses to the position of surgical resident. Her main storylines throughout the series focus on her struggles with the pressures of a highly competitive profession, her initially strained relationship with Meredith, and her on-again, off-again romance with Mark Sloan (Eric Dane), an attending in plastic surgery. The couple sustained fatal injuries during an aviation accident in the Season 8 finale, leading to the renaming of Seattle Grace Mercy West Hospital to Grey-Sloan Memorial Hospital in their memory.
Leigh's performance as Lexie Grey received widespread critical acclaim from critics and fans alike. Her death remains one of the most emotional moments in the series' history.
Storylines Background Alexandra Caroline "Lexie" Grey (born 1984)"P.Y.T (Pretty Young Thing)" (7.14), February 10, 2011. is the daughter of Susan Grey (Mare Winningham) and Thatcher Grey (Jeff Perry), and the older sister of Molly Grey-Thompson (Mandy Siegfried).
Throughout her childhood, Lexie was unaware that she had an older half-sister, Meredith Grey (Ellen Pompeo), who was born to Thatcher and his first wife Ellis Grey (Kate Burton), a world-renowned surgeon."Only Mama Knows" (11.04), October 16, 2014. In contrast to Meredith, Lexie grew up in an idealistic and loving home. Meredith once remarked about Lexie: "She was raised right. With parents and rules and smiley face posters on her wall.""In the Midnight Hour" (5.09), November 20, 2008. One of Lexie's fondest memories is of a surprise party her parents threw for her when she turned 7, which she always remembered as one of her best birthdays."Invest in Love" (6.08), November 5, 2009. Lexie displayed high intelligence from an early age, having skipped third grade and excelled in her psych clerkship."Sympathy for the Devil" (5.12), January 15, 2009."I Always Feel Like Somebody's Watchin' Me" (6.03), October 1, 2009. She was also popular during her high school years, where she was crowned prom queen and named class valedictorian. Despite their differences in upbringing, the Grey sisters ultimately form a strong familial bond after Lexie moves into Meredith's house.
Lexie possesses an eidetic memory, a trait that often proves helpful and earns her the nickname "Lexipedia"."Here Comes the Flood" (5.03), October 9, 2008. She demonstrates an aptitude for both plastics and neurosurgery, and is considered one of the most talented young surgeons of her cohort, often being asked to assist on many high-profile surgeries."Before and After" (5.15), February 12, 2009.
Season 3
Near the end of Meredith's intern year, Thatcher and Molly mention that Lexie is a student at Harvard Medical School."The Name of the Game" (2.22), April 2, 2006. After she graduates, Lexie is accepted by Massachusetts General Hospital to pursue her residency. However, following her mother's sudden death due to complications from the hiccups, Lexie decides to move back to Seattle to care for her grieving father. She takes up a surgical internship at Seattle Grace Hospital, starting one year behind Meredith, who is about to begin her first year of residency."A Change Is Gonna Come" (4.01), September 27, 2007.
On the day of her mother's funeral, Lexie waits in the car while Thatcher, accompanied by Molly, tells Meredith that she isn't welcome at the ceremony, causing Lexie to miss the opportunity to meet her older half-sister. Later that night, before her internship at Seattle Grace begins, Lexie meets Derek Shepherd (Patrick Dempsey) at Joe's Bar, in a scene reminiscent of Derek's initial meeting with Meredith. The two share a flirtatious moment, with Lexie boldly offering to buy Derek a drink, though Derek declines, saying he is there with some friends."Testing 1-2-3" (3.24), May 10, 2007.
The next day, upon arriving at the hospital's intern locker room, Lexie meets George O'Malley (T. R. Knight), who is at the end of his first year as an intern. After introducing herself, George immediately realizes that Lexie is Meredith's half-sister."Didn't We Almost Have It All" (3.25), May 17, 2007.
Season 4
Lexie quickly befriends George and promises not to reveal that he is repeating his internship after failing his intern exam. Lexie's assigned supervising resident is Cristina Yang (Sandra Oh), Meredith's best friend, who doesn't bother to learn her interns' names and assigns Lexie the nickname "Three". Although Cristina is initially harsh and dismissive, Lexie eventually stands up for herself and earns Cristina's respect. Over time, Cristina even acknowledges Lexie as her best student."The Heart of the Matter" (4.04), October 18, 2007."Losing My Mind" (4.15), May 15, 2008."There's No 'I' in Team" (5.05), October 23, 2008.
Lexie is eager to build a relationship with Meredith but receives a cold response when she first introduces herself. Despite her efforts to bond, Meredith continuously rebuffs her attempts."Love/Addiction" (4.02), October 4, 2007."Let the Truth Sting" (4.03), October 11, 2007. Meanwhile, Lexie begins a casual fling with resident Alex Karev (Justin Chambers), who later discovers that her father, Thatcher, has descended into alcoholism following his wife's death and frequently lashes out at Lexie. When Meredith lectures her for not looking after Thatcher, Lexie finally stands up for herself and decides to stop pursuing a relationship with Meredith for the time being."Kung Fu Fighting" (4.06), November 1, 2007."Forever Young" (4.08), November 15, 2007.
After ending her emotionless relationship with Alex, Lexie forms a connection with patient Nick Hanscom (Seth Green). She is present when his exposed artery ruptures, causing a massive hemorrhage. Although Lexie manages to stop the bleeding, Nick tragically dies later, leaving Lexie distraught. Sensing her grief, Cristina invites Lexie to join her and Meredith for drinking and dancing, which marks the beginning of the thawing of Lexie and Meredith's relationship."Crash Into Me (Part 1)" (4.09), November 22, 2007."Crash Into Me (Part 2)" (4.10), December 6, 2007.
The next morning, Meredith attempts to show kindness by making Lexie breakfast. Despite being allergic to eggs, Lexie politely eats the meal, only to require treatment later at the hospital."Lay Your Hands on Me" (4.11), January 10, 2008. Lexie and George later decide to move in together, but they can only afford a run-down apartment. Lexie attempts to brighten the place by stealing decorations and furniture from the hospital."Where the Wild Things Are" (4.12), April 24, 2008.
As Lexie develops romantic feelings for George, she secretly steals his personnel file from Chief Richard Webber's (James Pickens Jr.) office and learns that George had only failed his intern exam by one point."Freedom" (4.16), May 22, 2008. She encourages him to petition the Chief for a second chance, which the Chief grants. Overjoyed, George plants a casual kiss on Lexie, unaware of her deeper feelings for him."Freedom" (4.17), May 22, 2008.
Season 5
Lexie continues to harbor romantic feelings for an oblivious George, reflecting a dynamic similar to George's previous infatuation with an oblivious Meredith."Dream a Little Dream of Me" (5.01), September 25, 2008."Dream a Little Dream of Me" (5.02), September 25, 2008. She prioritizes helping George study over taking part in a rare surgery offered to her by plastics attending Mark Sloan (Eric Dane), but feels betrayed when George fails to request that she be assigned as one of his interns after he passes his exam."Brave New World" (5.04), October 16, 2008. Realizing George doesn't reciprocate her feelings, Lexie decides to move on, and their friendship gradually fades."Life During Wartime" (5.06), October 30, 2008.
Soon after, Lexie discovers that some of her fellow interns have been secretly practicing medical procedures on each other. To prove herself "hardcore," she participates in these unauthorized operations."Rise Up" (5.07), November 6, 2008."These Ties That Bind" (5.08), November 13, 2008. When Sadie Harris (Melissa George) suggests that Lexie remove her appendix, Lexie agrees but quickly realizes she's out of her depth and must seek help from Meredith and Cristina to save Sadie's life. This incident results in the interns involved being placed on probation. Exhausted and distraught, Lexie is invited by Derek to move into the attic at his and Meredith's house.
Lexie begins a flirtation with Mark and is impressed by his surgical skills. One night, she goes to his hotel room, boldly undresses, and asks him to "teach" her, marking the start of their romantic relationship."All By Myself" (5.10), December 4, 2008. Due to the large age gap and the fact that Lexie is Meredith's younger sister, they initially keep their relationship a secret, earning Lexie the nickname "Little Grey"."Wish You Were Here" (5.11), January 8, 2009.
When Carolyn, Derek's mother (Tyne Daly) visits, Mark is anxious that she will disapprove of his relationship with Lexie. However, Carolyn gives her approval, telling Mark that Lexie is exactly the kind of youthful person he should be with. In a humorous moment, Lexie accidentally causes Mark to suffer a penile fracture during a makeout session in an on-call room. She seeks the help of Callie Torres (Sara Ramirez) and Owen Hunt (Kevin McKidd) to treat him, and Sadie takes the blame to spare Lexie further embarrassment."Stairway to Heaven" (5.13), January 22, 2009.
Lexie later wins an intern competition organized by Izzie Stevens (Katherine Heigl) and is congratulated by Mark. Wanting to be open about their relationship, Lexie convinces Mark to confess to Derek, but his timing is poor—Derek, devastated by the loss of a patient, ends up in a fistfight with Mark."Beat Your Heart Out" (5.14), February 5, 2009."An Honest Mistake" (5.16), February 19, 2009. The conflict causes Lexie to stress-eat, but the men eventually reconcile."Sweet Surrender" (5.20), April 23, 2009.
When Lexie is chosen by Mark to assist with a rare facial transplant surgery, her peers mock her, suggesting she's only involved due to their relationship. In defiance, Lexie kisses Mark in front of the other interns, proclaiming, "They think that we're ugly, but I know that we're beautiful, and we can adapt to a hostile environment.""Stand By Me" (5.18), March 19, 2009.
Lexie is honored when Meredith asks her to be a bridesmaid at her wedding to Derek, though the ceremony is ultimately given to Alex and a cancer-stricken Izzie, which Lexie attends with Mark."What a Difference a Day Makes" (5.22), May 7, 2009. When Lexie asks Mark to meet her now-sober father, Thatcher, Mark is initially hesitant, fearing rejection. However, realizing he wants a future with Lexie, he agrees to meet her father."No Good at Saying Sorry (Once More Chance)" (5.21), April 30, 2009.
Shortly after, Mark invites Lexie to move into a house he purchased, but Lexie declines, feeling that their relationship is progressing too quickly."Here's to Future Days" (5.23), May 14, 2008."Now or Never" (5.24), May 14, 2009.
Season 6