a medical degree, and departs the show immediately after. Meredith and Shepherd's relationship reaches a crisis, and the two separate, leaving Shepherd to entertain a relationship with Rose (Lauren Stamile), a nurse. Rose appears frequently until season 5, when Derek and Meredith decide to rekindle their flame. Throughout the fifth season, Stevens experiences full-out hallucinations of Duquette, signaling that she is ill, and once she is lucid, he departs, marking his final appearance. Following the announcement of her relationship with Robbins (Jessica Capshaw), Callie's father Carlos Torres (Hector Elizondo) initially contests his daughter's concurrence in homosexuality, but eventually accepts it, and he reappears several times throughout the series. 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 6 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 pregnant daughter who seeks kinship with him. 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 8. Following the breakdown of Dr. Torres's relationship with Dr. Robbins, Dr. Torres becomes pregnant with Dr. Sloan's baby. Torres's 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. 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 taking up Robbins' job in Africa. 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 in season 8. In the season 9 premiere, interns Dr. Jo Wilson (Camilla Luddington), Dr. Shane Ross (Gaius Charles), Dr. Stephanie Edwards (Jerrika Hinton), Dr. Leah Murphy (Tessa Ferrer) and Dr. Heather Brooks (Tina Majorino) are introduced. Steven Culp and William Daniels play Dr. Parker