Special Guest Stars Jon Seda as Detective Antonio Dawson Marina Squerciati as Officer Kim Burgess Nick Gehlfuss as Dr. Will Halstead Yaya DaCosta as Nurse April Sexton Guest Stars Randy Flagler as Firefighter Harold Capp DuShon Brown as Connie Gary Cole as Commissioner Carl Grissom Brian Howe as Nick Porter Michael Cognata as Julian Robbins Marika Engelhardt as Holly Boylan Daniel Stewart Sherman as Scott Boylan Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Tim Gamble as Ronnie Turner Alex Haydon as Roland Nefra Burlock as Hospital Administrator Uncredited Anne Lockhart voices Dispatcher
