Who is Dr. Sharon Crandell from First, Do No Harm and what is their importance?

Taylor's first doctor, Sharon Crandell is often seen as having a cool and emotionally detached demeanor. In fact, Sharon is attempting to avoid emotional attachment to her patients. Sharon is always on the 'life' side of the ethics debates, refusing in many cases to allow children to die even when they're terminally ill. Her demeanor and ethical views cause her to clash with others in the hospital.