Grey’s Anatomy
Even thoughGrey ’s Anatomyhas been on the air for 16 old age , there are only 3 original cast members that still grace looker ' screens every Thursday dark . The residual of the cast is made up of characters that were introduced after the first time of year , which only consist of nine installment .
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Each time of year has take new people into the Grey ’s creation , whether they were previously mentioned as class members or were all new faces at the hospital . Given thehigh turnover rate with physician at Grey - Sloan Memorial , it ’s no surprise that they ’d need to get some replacement operating surgeon year after year .
Atticus Lincoln
Head of orthopedical surgery and cancer survivor Atticus ' Link ' Lincoln started make at Grey Sloan Memorial Hospital in Season 15 of the series .
Link ’s close friendship with Jo Wilson and romantic relationship with fan - favorite Amelia Shepherd made him wish by looker . Fans were thrilled when it was revealed that he was in fact the Fatherhood of Amelia ’s babe , and not her x - married man Owen Hunt . Link has n’t been on the show long , but his power to make for Amelia long - awaited felicity made him a perfect and necessary increase .
Maggie Pierce
Season 10 enter a new family appendage for Meredith , a half - sister name Maggie Pierce . Maggie was give away to be the daughterof Ellis Grey and Richard Webber , who was put up for borrowing when she was a baby .
Maggie ’s arrival at Grey - Sloan yield Meredith a probability to have a re - do at a close relationship with a sis following the death of her other half - sister , Lexie . Maggie also move Richard ’s story by being his only child . Maggie ’s intellect and rage for operating room allow for her to have her own fun storylines , and tot up to those of the original casting members .
Arizona Robbins
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Arizona ’s bubbly deportment and passionateness for working with children made her fun to watch and allowed her to bond with Alex Karev over paediatrics . Her relationship and eventual marriage to Callie Torres was a odorous lovemaking story , though their eventual divorce was dissatisfactory to viewers . Arizona was a delight to watch , and a Peds surgeon the hospital urgently needed .
Jo Wilson
Season 9 introduced a new division of interne , one of which being the one and only Jo Wilson , played by English actress Camila Luddington .
The intro of Jo ’s character gave Alex Karev the epical love life floor he always deserved and allow Meredith to bond with someone who resembled her as an intern . Meredith and Jo both had different traumatic pasts and were eventually capable to bond and assist each other . Jo and Alex ’s sexual love report may be over , but Jo ’s eccentric still deserves one of her own .
April Kepner
Season 6 introduced a handful of young residents as Seattle Grace coalesce with Mercy West . One of those new addition wasthe over - eager and slightly annoying April Kepner .
April was fired shortly after her reaching but was re - hired when Derek became Chief of Surgery . Her oddity start to sink as she got more comfortable in her new quad , and the relationship she shape with fellow Mercy West alumni Jackson Avery was a romanticism that fans could n’t help but settle for , even after her character left the show in Season 14 .
Ben Warren
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Additionally , his calling switch - ups throughout the show - from anesthesiologist to surgical resident to firefighter - was a realistic depiction of anyone without a straightforward calling path .
Jackson Avery
Another Mercy - West house physician that luckily was n’t dealt a tragic fate at the death of Season 6 was Jackson Avery . Jackson commence his tenure at Seattle Grace as an outsider , but eventually became a likeable persona and one of the longest - lastingGrey’shas seen .
His indulgent - spoken nature and friendly relationship - turned - marriage with fellow Mercy Wester April Kepnergave him a superfluity of interesting storylines , and the introduction of his mother , Catherine , gave a deeper insight into his class life .
Amelia Shepherd
Amelia Shepherd first appeared on the spinoffPrivate Practicebut ended up crossing over toGrey ’s Anatomyas a series regular beginning in Season 11 .
The addition of Amelia to the showas a chief mould member allow Meredith to profit another sister , one she desperately needed after the expiration of Cristina Yang and the end of her husband Derek at the ending of Season 11 . Amelia ’s story was allowed to stay on onGrey’safter the ending ofPrivate Practice , hopefully giving her character a truly happy conclusion she deserves .
Mark Sloan
In the latter one-half of time of year 2 , Derek ’s ex - best friend and Addison ’s former lover Mark Sloan get in at Seattle Grace . He wreaks mayhem as the Shepherds are in the midst of reconstruct their already kick downstairs union .
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When Mark eventually submit the job of Head of Plastic Surgery at Seattle Grace , he formed a nigh friendship with Callie Torres and an adorable kinship with Lexie Grey . Mark ’s bromance with Plastics Posse member Jackson Averyin his later seasons display his grapheme increment , and it was heartbreaking to watch him say goodbye to those he enjoy after the fearful plane crash .
Lexie Grey
Derek Shepherd met a girl at a bar in the first episode of Season 1 and the last episode of Season 3 . His second time around , he was introduced toMeredith ’s half - sister Lexie , unbeknownst to him .
Lexie ’s arrival in Seattle allowed for Meredith to last have a non - toxic genetic family relationship , even if she initially resisted Little Grey ’s presence . During her time on the show , Lexie fetch a gumption of naiveness and ingenuousness and was on track to be an unbelievable brain surgeon like her brother - in - practice of law .
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