Habituals de la temporada 4

1. 

   Derek de Lint

   Derek Rayne, Ph.D.

2. 

   Martin Cummins

   Nick Boyle

3. 

   Helen Shaver

   Rachel Corrigan, MD

4. 

   Robbi Chong

   Alexandra Moreau

Estrelles convidades 13

1. 

   David Cubitt

   Kyle Vance

2. 

   Fiona Hutchison

   Nakties Davisia, Mistress of Endless Night

3. John Taylor

   Karl Vance

4. Alex Green

   Adolfas Vance

5. Babe Dolan

   Lena Vance

6. 

   David Longworth

   Joseph Vance

7. 

   Lori Triolo

   Connie

8. Gloria Crichlow

   Mrs. Wilkinson

9. 

   Doug Abrahams

   Dix

10. 

    Scott Swanson

    Judge Druckner

11. 

    Ben Immanuel

    Kyle's Attorney

12. Tami DeSchutter

    Murdered Woman

13. Thomas B. Deschutter

    Murdered Man

Equip tècnic 4