Guest Stars Peter Jacobson as Dr. Christopher Taub Olivia Wilde as Dr. Remy "Thirteen" Hadley Kal Penn as Dr. Lawrence Kutner Anne Dudek as Dr. Amber Volakis Edi Gathegi as Cole Andy Comeau as Brennan Carmen Argenziano as Henry Dobson Caroline Lagerfelt as Connie Azura Skye as Irene Tom Wright as Dr. Pilcher Jose Miguel Vasquez as Gang Banger Scott Alan Smith as Dr. Brady Vince Deadrick, Sr. as Mr. Franklin Co Starring Bobbin Bergstrom as Nurse #2 Kenneth White as Old Man Jerry Hauck as Martin