<Tr> <Th> </Th> <Td> </Td> <Td> "The First Cut Is the Deepest" </Td> <Td> Peter Horton </Td> <Td> Shonda Rhimes </Td> <Td> April 3, 2005 (2005 - 04 - 03) </Td> <Td> 17.71 </Td> </Tr> <Tr> <Td_colspan="7"> Meredith looks for roommates to share her mother's house with, but initially doesn't want to room with Izzie and George . Derek and Meredith tend to a rape victim . While looking at newborn babies in the hospital Meredith and George discover an ailment with a newborn baby, but a nurse tries to dismiss their concerns . Izzie Stevens helps out a Chinese woman whose daughter is in need of medical care . Derek and Burke quarrel over the Chief of Surgery position . </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> "Winning a Battle, Losing the War" </Td> <Td> Tony Goldwyn </Td> <Td> Shonda Rhimes </Td> <Td> April 10, 2005 (2005 - 04 - 10) </Td> <Td> 17.99 </Td> </Tr> <Tr> <Td_colspan="7"> Competition between the interns over patients ensues after an annual unauthorized bike race causes many injuries . Izzie has trouble locating the family of a near brain - dead man, and Cristina Yang (Sandra Oh) is excited when the patient's family agrees to harvest his organs if he dies, leading Miranda Bailey (Chandra Wilson) to lecture her on bedside manner . A patient who is a friend of Dr. Webber flirts with George . One of the patients from the bike race flirts with Meredith . </Td> </Tr>

How old were the cast of grey's anatomy when it started