Miranda has been given the nickname "BCB" ("Booty Call Bailey"), due to her increasing love for Ben. In Season 10, Ben talks to Shepherd about how he suspects that Bailey has OCD.
Shepherd takes this to Hunt and Bailey is forced to be followed around by an occupational therapist to help her get control of her OCD. Owen Hunt is the Chief of Surgery at Grey Sloan Memorial Hospital.
As Chief of Neurosurgery, Derek Shepherd earns the nickname "Mc Dreamy" by the female staff of Seattle Grace.
The lead male character, he is known for his complicated love life.
He invites a former colleague, Teddy Altman, to work alongside him, a decision which causes some friction between himself and Cristina. After Webber resigns, he is given the position of Chief of Surgery.
He and Cristina experience marital problems after his affair with a woman at a bar.
He wants to move to DC with his family, but Meredith says shes doesn't want to in the season finale.
In season 11 episode 21 "How To Save A Life", he dies of a head injury after his car was T-Boned by a semi-truck.
He takes over as the Chief of Surgery after going to the hospital board about Chief Webber's drinking problem.
After surviving the plane crash in the Season 8 finale, he begins Season 9 recovering from his injured hand.
His hand goes numb while he tries to grip one of the instruments before surgery. In season 10 Derek starts to work with the president, using his technology that he and Callie created.
He resigns after nearly dying from being shot because he thinks being Chief isn't his place.
He and Meredith adopt an orphan named Zola from Africa in Season 7.