Elenco Principal da Temporada 4

1. 

   安娜·托芙

   Olivia Dunham

2. 

   Joshua Jackson

   Peter Bishop

3. 

   John Noble

   Walter Bishop

4. 

   Jasika Nicole

   Astrid Farnsworth

Convidados Especiais 27

1. 

   兰斯·雷迪克

   Phillip Broyles

2. 

   Michael Cerveris

   The Observer / September

3. 

   Shaun Smyth

   Anil

4. 

   Michael Kopsa

   Captain Windmark

5. 

   Ray Boulay

   Observer #5

6. 

   Ian Butcher

   Observer #2

7. 

   Thomas Cadrot

   Young Resistance Fighter

8. 

   Bruce Crawford

   Loyalist Driver In Hummer

9. 

   Charlie Gallant

   Loyalist Guard At Desk

10. 

    Ryan Hesp

    Butterfly Observer

11. Abagayle Hardwick

    Young Etta

12. Howard Lai

    Loyalist Guard In Hummer #2

13. 

    Eugene Lipinski

    December

14. Rowan Longworth

    Michael

15. 

    Timothy Lyle

    Loyalist Tunnel Operator

16. 

    Kurtis Maguire

    Lead Observer

17. Chad Matchette

    Traffic Control Loyalist

18. 

    Gardiner Millar

    Observer #2

19. James Fredrick Ralph

    Observer #4

20. 

    Jordan Schartner

    Observer #1

21. 

    Dan Shea

    Observer #3 On Street

22. Michael Soltis

    Resistance Member In Truck

23. 

    Hugo Steele

    Loyalist In Apartment #1

24. 

    Sharon Taylor

    Broyles' Secretary

25. Felipe Vecino

    Loyalist In Apartment #2

26. 

    Greg Zach

    Dying Observer (Egg Face)

27. 

    Russell Thomas

    Loyalist in Parkade

Equipa Técnica 2