William Parker, more commonly known as Dell Parker, is a character on the Grey's Anatomy spin-off, Private Practice. He was portrayed by actor Chris Lowell and appeared from the first through third seasons. Dell was the receptionist at the Oceanside Wellness Group as well as a qualified nurse, training to be a mid-wife, helping out the doctors with various tasks. Dell was frequently shown to be concerned with the health of younger patients, which is likely related to his abuse as a child, as well as his own young daughter. The character died following injuries sustained in a car crash.