|全名||亚历山大·卡罗琳·格蕾（Alexandra Caroline Grey）|
亚历山大·卡罗琳“莱克西”·格蕾M.D.（英語：（Alexandra Caroline "Lexie" Grey）是美国广播公司在美国首播的医务剧《实习医生格蕾》中的一个虚构角色。这个角色就剧集的制片人珊达·莱梅斯主创，由凯乐·利扮演，首次出场是在第3季，再从第4季起成为主要角色一直到第8季结束。第3季出现时她还是一个外科实习生，是梅莉迪丝·格蕾（艾蓮·朋佩歐饰）同父异母的妹妹，在母亲突然去世后转至剧中虚构的西雅图仁爱西慈医院，之后成长为一位外科住院医师。
莱克西和整形外科医生马克·斯隆发展出浪漫关系，姐姐梅莉迪丝和姐夫德里克·谢柏德（帕特里克·丹普西饰）对此很担心，因为斯隆一向是个花花公子，他们担心莱克西会受到伤害。欧麦利在第6季中因车祸去世，难过的莱克西向斯隆寻救慰藉，两人也住到了一起。Later in the season, Thatcher is admitted into the hospital, subsequently being diagnosed with liver failure—a repercussion from his former alcoholism. It is revealed that he needs an organ transplant, and Lexie offers to donate, but she is not a viable candidate. After constant pleads from Lexie, Meredith unwillingly agrees to donate her liver to Thatcher. In "Holidaze", Sloan's daughter shows up at their apartment, seeking kinship with him. His daughter soon announces her pregnancy, and Sloan offers shelter for her and the baby. However, when Lexie finds out, she is piqued that Sloan did not discuss this with her, and the two break up. On the spur of the moment, Lexie and Karev engage in sexual activity while his wife, Izzie Stevens (Katherine Heigl) is estranged, and the two form a relationship.
During the season six finale, a grieving deceased patient's husband goes on a shooting rampage at the hospital, and shoots Karev. In the shooting's emotional reverberations, Lexie goes into a mental state, is admitted to the hospital's psychiatric facility, and gets sedated for fifty hours. Karev cannot deal with this, and ends his relationship with Lexie, leaving her enraged. Their breakup is followed by Lexie returning to Sloan, who condemned Karev for leaving her. However, Lexie later discovers that during their breakup, Sloan impregnated orthopedic surgeon Callie Torres (Sara Ramirez), and she ends their relationship, again. In the aftermath of the breakup, Lexie agrees to a date with fellow resident, Jackson Avery (Jesse Williams), and the two entertain a brief relationship. In season eight, Lexie becomes jealous of Sloan's new girlfriend, Julia, which leads to Avery breaking up with her. Thereafter, Lexie confesses her undying love to Sloan, only to be ignored. In "Flight", however, Lexie, Sloan, Meredith, Shepherd, Yang, and pediatric surgeon Arizona Robbins (Jessica Capshaw), are involved in an aviation accident, crushing Lexie under debris. It is revealed that Lexie is suffering from a hemothorax, and that she will die. Sloan takes her by the hand, and tells her he will always love her, and that they were meant to be. Lexie subsequently succumbs to her injuries, and dies as Meredith is approaching. Seattle Grace Mercy West Hospital is later renamed Grey Sloan Memorial Hospital in tribute to Lexie and Mark, who succumbed to his injuries after returning in Seattle.
Leigh first appeared on the show during the last two episodes of the third season as Meredith's half-sister, Lexie Grey. Following Isaiah Washington's departure, who portrayed Preston Burke, it was reported that show's executives were planning on adding new cast members, such as Lexie. She was officially upgraded to a series' regular on July 11, 2007, for the fourth season. On casting Chyler Leigh as Lexie, Grey's Anatomy creator Shonda Rhimes said: "We met with a lot of young actresses, but Chyler stood out—she had a quality that felt right and real to me. It felt like she could be Meredith's sister, but she had a depth that was very interesting."
In September 2011, Leigh requested an extended summer hiatus, in order to spend more time with her family. This was granted by Rhimes, though the actress returned in mid-October. Leigh's character died in the eighth season finale. In May 2012, Rhimes revealed why she decided to have Lexie die: "I love Chyler and I love the character of Lexie Grey. She was an important member of my Grey's family. This was not an easy decision. But it was a decision that Chyler and I came to together. We had a lot of thoughtful discussion about it and ultimately we both decided this was the right time for her character's journey to end. As far as I'm concerned, Chyler will always remain a part of the Shondaland family and I can't wait to work with her again in the future." Following the death of her character, Leigh released a statement saying:
|“||Earlier this year, I made the decision that season eight would be my last on Grey’s Anatomy. I met with Shonda [Rhimes] and we worked together to give Lexie’s story appropriate closure. I am very lucky to have worked with this amazing cast and crew for five seasons. My experience on Grey’s Anatomy is something that I will treasure for the rest of my life. I want to take this time to say thank you to the fans. Your unconditional love and support have made these last five years very special for me. I look forward to my next chapter and I hope you will continue to follow me on my journey.||”|
Leigh's character has been called "reliable, trustworthy, timid, and apprehensive" by Grey's Anatomy executives. In her early appearances, it was learned that Lexie has a photographic memory, which she applied to her surgical career. This led her to being nicknamed "Lexipedia" by Alex Karev. The character has also been described as an "innocent young intern" by Alex Keen of The Trades.
Of the character, Leigh said: "She's a very vulnerable person from a very healthy background—she knows how to make good relationships but at this point [season four], she's coming into so much opposition she's trying to adjust to it." Debbie Chang of BuddyTV commented on Lexie's early characterization, including her sexual relationship with Karev:
|“||Rivaling her half-sister Meredith with her own set of daddy issues, Lexie has been perfectly on schedule with the boyfriend issues this season as well. She decided that she could live with being Alex's plaything, no strings attached, but when push came to shove, and [Karev's ex-girlfriend] came back for a booty call or two, she showed her true Grey colors and couldn't continue with the emotionless sex. She has, however, made considerable strides in her relationship with Meredith.||”|
Similarities have been established between Lexie and her half-sister, Meredith. Series writer, Stacy McKee, commented on this:
"Lexie’s struggling to be hardcore herself. I don’t know if I’d go so far as to say, perhaps, this kind of struggle must run in the family, but… Okay. Fine. It must run in the family – because Lexie, though she’s very different from Meredith in many many ways, in this one way – they seem to be exactly alike. Meredith and Lexie both want to succeed. They want to be strong. They want to feel normal. They want, so much, to be whole. But it’s a struggle – a genuine struggle for them. Being hardcore doesn’t come naturally. Sometimes, they have to fake it."——Stacy McKee，Grey Matter
Lexie entertained several relationships throughout her time on Grey's Anatomy. In her early appearances, she maintained a friendship with George O'Malley, until developing romantic feelings towards him. Rhimes offered the insight: "I love them as friends. They make good friends. We all have that friend we met in school or the gym or somewhere – we just hit it off right away. And right away there was no pretense or airs. Just pure honesty. That’s Lexie and George. They’re really good friends and I can see the friendship evolving into something even greater. At least, that’s what Lexie is hoping. She is my kind of girl. The girl who likes the guy because he is a GOOD guy and that’s what George is. He is a good guy and that’s something that Lexie could use now. She’s going through her own challenges what with Meredith and losing her own mother and trying to keep things afloat. I’m rooting for Lexie. She’s my kind of girl and I hope that she gets what she deserves: love. And more kisses. There should always be that." Lexie's most significant relationship was with Mark Sloan. Following her death, Rhimes said:
|“||Honestly, I always felt like Mark and Lexie were meant to be together. If things had not turned out the way they had this season, I had a completely different thing planned for them. I was one of the people who loved Mark and Lexie together. [...] When Mark and Lexie say "meant to be," it wasn't about servicing the fans. That's how I felt. That's what was supposed to happen, and that's what I wanted to see. It was heartbreaking. I loved the idea of them together. They played really well together. They were very charming and funny and great. We did the scene where Lexie confesses to Mark that she's still in love with him. That was bittersweet to me because it was like, 'Look, they're so close, so close! And yet so far.'||”|
Leigh has received mixed feedback for her role as Lexie Grey. People, less than impressed, criticized the way Leigh's character initially approached her sister, calling it "rude". Jennifer Armstrong of Entertainment Weekly was also critical of Leigh's early appearances, referring to her as "awkward". However, Armstrong later noted that the "sparkling" friendship development between Lexie and O'Malley "won her over". The character's transition from season four to five was positively reviewed, with Keen of The Trades writing: "Her presence and confidence have increased quite a bit since last season, and actress, Chyler Leigh, does a fantastic job of making this progression feel seamless. Since the series has defused the tension between Little Grey and Big Grey (aka Meredith), Lexie has clear sailing through the season and steals the show as one of the best current characters on the series."
Lexie was strongly criticized by Laura Burrows from IGN, being called "awful". Burrows also wrote: "Everything she says and does is obnoxious and does harm to someone. Lexie is an idiot and should be shot or drowned or exploded." The character's relationship with Sloan has been well received, with Chris Monfette of IGN writing: "Sloan's honest relationship with Lexie helped to make both characters infinitely more interesting and mature." Leigh served as a primary vocalist in "Song Beneath the Song", the Grey's Anatomy music event, and was well received, with the Boston Herald's Mark Perigard praising her performance. The character was listed in Wetpaint's "10 Hottest Female Doctors on TV". In 2007, at the 14th Screen Actors Guild Awards, Leigh and the rest of the cast of Grey's Anatomy, received a nomination for Outstanding Performance by an Ensemble in a Drama Series.引用错误：