Season Regulars 6

1. 

   Nick Gehlfuss

   Dr. Will Halstead

2. 

   Marlyne Barrett

   Maggie Lockwood

3. 

   Dominic Rains

   Dr. Crockett Marcel

4. 

   S. Epatha Merkerson

   Sharon Goodwin

5. 

   Oliver Platt

   Dr. Daniel Charles

6. 

   Guy Lockard

   Dr. Dylan Scott

Guest Stars 19

1. 

   Steven Weber

   Dr. Dean Archer

2. 

   Jessy Schram

   Dr. Hannah Asher

3. 

   Brian Tee

   Dr. Ethan Choi

4. 

   Kate Eastman

   Petra Katsner / 'Lia'

5. 

   Deanne Lauvin

   Zora Scott

6. 

   Johnny M. Wu

   Dr. Randall Shentu

7. Zoe Mann

   Krystal Hall

8. 

   Lauren Sweetser

   Darlene Wells

9. 

   Colton Adams

   Gavin Wells

10. Kathleen Czajkowski

    X-Ray Tech Kathleen

11. Courtney Rioux

    Paramedic Courtney

12. 

    Desmond Gray

    Paramedic Desmond

13. 

    Lorena Diaz

    Nurse Doris

14. 

    Renellè Nicole

    Nurse Trisha

15. 

    Riley Voelkel

    Milena Jovanovic

16. 

    Marc Grapey

    Peter Kalmick

17. 

    Nicolette Robinson

    Tara Goodwin

18. Lynnette Li

    Nurse Nancy

19. Marie Tredway

    Nurse Trini

Crew 6