Played by Ann Cusack

Dr. Donna Follette is the New Orleans doctor who euthanized five patients at a hospital in the days following Hurricane Katrina rather than allow them to suffer excruciating pain and likely death in the terrible conditions. She is represented by Vanessa Walker, Alan Shore and Denny Crane in 3x11 [Angel Of Death].

Ann Cusack at the Internet Movie Database.
Ann Cusack at Wikipedia.