Before Mandy Moore wrecked us on This Is Us, she played Mary Portman, Dr. Bailey's patient at Seattle Grace who needs a blood transfusion and asks her husband to get her a pizza the day of the Gary Clark shooting. When Clark comes in, the doctors hide and Mary plays dead. Charles ends up getting shot, and this culminates in one of season six's most emotional scene with Dr. Bailey trying her best to save him with Mary's help.