and Dr. Craig Thomas, respectively. Dr. Parker is Chief of Cardiothoracic Surgery and Dr. Craig Thomas (William Daniels) is an attending cardiothoracic surgeon at Mayo Clinic, where Cristina worked temporarily. Dr. Alana Cahill (Constance Zimmer) introduced in season 9 is appointed to cut costs at the hospital and she eventually decides the best course of action would be to seek out a new buyer until the 4 crash survivors and Torres on the behalf of Sloan pool their money together in a bid to purchase the hospital themselves. Kepner starts dating a paramedic named Matthew Taylor (Justin Bruening) and they form a deep relationship over the course of seasons 9 and 10 and she eventually agreed to marry before reconciling with Avery in the middle of her wedding ceremony to Matthew. Lauren Boswell (Hilarie Burton) is introduced as a craniofacial surgeon consulting on a case at Grey Sloan Memorial who showed romantic interest in Arizona and eventually ended up having a one-night stand with her. Dr. Heather Brooks dies in the premiere of season 10. She goes to search for Dr. Webber and finds him lying in the basement of the hospital. Trying to save Dr. Webber, she accidentally steps into a puddle and electrocutes herself while hitting her head as she falls. Also introduced in season 10 was Dr. Karev's estranged father Jimmy Evans (James Remar) who tries to form a relationship with his son but fails repeatedly, and dies in a botched surgery. The conclusion of season 10 has Cristina leaving Grey Sloan for Dr. Burke's job as head of Klausman Institute for Medical Research in Zurich, while Dr. Ross makes a last-minute decision to follow her in order to study under her. Dr. Maggie Pierce (Kelly McCreary) unknowingly drops a bombshell that she is the child of Dr. Webber and the late Dr. Grey, and was given up at birth for adoption. Dr. Meredith Grey has to accommodate another half-sister in her life. Also, Dr. Yang privately gives her shares in the hospital to Dr. Karev, also giving him her seat on the board. But Dr. Webber all but promises the seat to Dr. Bailey, so the board has to decide between them. Season 11 begins with new surgical residents coming to the hospital. Introduced in season 11 is Dr. Nicole Herman (Geena Davis), who is Chief of Fetal Surgery at Grey Sloan Memorial. Dr. Herman selects