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Richard Webber

His real name is James Pickens Jr.
He is the head of Seattle Grace Hospital.
He loves Ellis Grey, Meredith's mother. He spends a lot of time in his hospital but his wife leaves him because they never see each other.

Miranda Bailey

Her real name is Chandra Wilson.
She is the head of the interns. She loves her job and she spends a lot of time seeing patients.
She wants to be the head resident.

Mark Sloan

His real name is Eric Dane.
He is a plastic surgeon. He wants to be the new head of Seattle Grace Hospital. He's coming on to Addison but she doesn't want to be with him.
He was Derek Shepherd's best friend.

Alex Karev

His real name is Justin Chambers.
He is a pretentious, haughty and beautiful man. He doesn't really have friends at the hospital.

Izzie Stevens

Her real name is Katherine Heigl.
She is a intern on the same team as Meredith, Cristina, George and Alex Karev. She is one of Meredith's roommates. She was married to Denny Duquette, a patient with a heart problem. But he died on their wedding day.

George O'Malley

His real name is T.R.Knight.
He is an intern at Seattle Grace Hospital. He is a roommate of Meredith and Izzie. He is married to Callie Torres.

Callie Torres

Her name is Sara Ramirez.
Callie Torres is an excellent orthopedist surgeon. She loved George O'Malley but at that time he was in love with Meredith.
Then, Callie and George were married in Los Angeles.

Preston Burke

His real name is Isaiah Washington.
He is a brilliant surgeon in the Seattle Grace Hospital. He wants to be the new head of surgery when Richard Webber retires.
He talks a lot with Derek and asks him if he will be best man in his Cristina's wedding.

Cristina Yang

Her real name is Sandra Oh.
She is Meredith's best friend. She falls in love with Dr. Preston Burke. She is a very intelligent and clever student but she's way too serious.

Addison Montgomery

Her real name is Kate Walsh.
Married to Shepherd, Addison is an internationally-known obstetrician. Derek has to make a choice between Dr Grey and Dr Montgomery. Then, Derek and Addison decide to divorce because Addison slept with Derek's best friend, Mark Sloan, when they lived together in New-York.

Dr. Meredith Grey

Her real name is Ellen Pompeo. Dr. Meredith Grey is an intern at Seattle Grace Hospital. She tends to be disoriented especially when it comes to the matters of the heart. She shares her own house with her fellow interns and best friends, Izzie Stevens and George O’ Malley.
She is the daughter of a well-known woman surgeon , Ellis Grey. But her mother has Alzheimer's disease and she doesn't remember Meredith is her daughter.
Meredith and Derek live a love story.

Dr. McDreamy

His real name is Patrick Dempsey.
In Grey's Anatomy, he is a briliant surgeon, especially in neurosurgery.
He married his medical school girlfriend, Addison Montgomery. But he declared the marriage over after discovering Addison in bed with Mark Sloan, his best friend, and relocated to Seattle. Derek accepted a job offer from his former teacher, Dr. Richard Webber in Seattle Grace Hospital.
There, Derek met Meredith Grey at a bar one night. Then, they fall in love but Derek doesn't tell Meredith about his marriage.
Richard Webber, head of Seattle Grace Hospital invited Addison to work at his hospital and Derek had to make a decision : stay with Meredith and tell her he's married or leave her to return to Addison.