S7, E1: The staff tries to deal with physical and emotional trauma in the wake of the vengeful gunman's deadly rampage; Derek makes a spontaneous decision to resign as chief and return to surgery.
James Tupper
Jason George
Debra Mooney
Judy Prescott
Matthew Fahey
Angela Elayne Gibbs
Dale Waddington
Annie O'Donnell
Paul Zies
Toussaint Waterman
Cliff Berens