 The hospital 's merging with Mercy West introduces new residents : Dr. Reed Adamson ( Nora Zehetner ) and Dr. Charles Percy ( Robert Baker ) , but the two are both murdered in the season six finale . Also introduced in the sixth season is Dr. Ben Warren ( Jason George ) , an anesthesiologist and eventual husband to Dr. Miranda Bailey , as well as Sloan Riley ( Leven Rambin ) , Dr. Mark Sloan 's estranged daughter who seeks kinship with him . Dr. Lucy Fields ( Rachael Taylor ) , an obstetrician @-@ gynecologist , is introduced in the seventh season , and serves as a love interest for Dr. Alex Karev , until eventually relocating to pursue a career in Africa . Robbins receives a grant to aid children in Malawi , which leads to a falling out between her and Torres . While in Malawi , Robbins is replaced by Dr. Robert Stark ( Peter MacNicol ) , a pediatric surgeon with an interest in Dr. April Kepner , who appears occasionally until season eight . Following the breakdown of Dr. Torres ' relationship with Dr. Robbins , Dr. Sloan and Dr. Torres unite , and she becomes pregnant . Torres ' relationship with Robbins is subsequently mended , and the couple endeavors to raise their new daughter , Sofia Robbin Sloan Torres , with the help of Dr. Sloan . Shepherd and Meredith also become new parents , with their adoption of Zola , a baby girl from Malawi . Conceived as a patient with a tumor condition who later develops diabetes , Henry Burton ( Scott Foley ) befriends Dr. Altman and eventually joins her in marriage only to get treated using her medical insurance , until he dies while undergoing heart surgery . 
