Wen is an attending surgeon who was Turk and the Todd's mentor for their first three years at the hospital. He has a somewhat serious personality, most of the time calling Turk by his full name 'Christopher', but often lightens up and enjoys jokes and the occasional 'Sterile High Five' from the Todd. He appears to be less of a jock than are many of the other surgeons at the hospital, although still got involved in a surgical versus medical wheelchair race. There is much that is not known about him, but it is confirmed that he is married, as he was late for surgery once due to his wife being in a car crash and breaking both legs. Although his full position within the hospital is unknown, he appears to be one of the most senior surgeons, as well as one of the most skilled, although in some cases Turk appears to be better than him