Season Regulars 5

1. 

   Michael Sheen

   William Masters

2. 

   Lizzy Caplan

   Virginia Johnson

3. 

   Caitlin FitzGerald

   Libby Masters

4. 

   Nicholas D'Agosto

   Dr. Ethan Haas

5. 

   Teddy Sears

   Dr. Austin Langham

Guest Stars 24

1. 

   Kevin Christy

   Lester Linden

2. 

   Spencer Garrett

   Beckett

3. 

   Anne Dudek

   Rosalie

4. 

   Joan Severance

   Leona

5. 

   Mary Passeri

   Jean Richards

6. 

   Betsy Zajko

   Ruby

7. 

   Molly Hagan

   Sybil

8. Zak Barnett

   Ted

9. 

   Ashley Johnson

   Flora Banks

10. 

    Carrie Wiita

    Penny

11. 

    Marlane Barnes

    Gladys

12. 

    Jennifer Holloway

    Ramona

13. 

    Nealla Gordon

    Nurse Lang

14. 

    Milissa Sears

    Audrey

15. 

    Kelly Lynn Warren

    Nurse Gwynne

16. Anne Griffin

    Kathleen

17. Bethany Dwyer

    Nurse Pratt

18. Christopher Clausi

    Bar Single (uncredited)

19. Dean Wayne

    Bus Passenger (uncredited)

20. 

    Julianne Nicholson

    Dr. Lillian DePaul

21. 

    Allison Janney

    Margaret Scully

22. 

    Garrett M. Brown

    Chancellor Fitzhugh

23. 

    Heléne Yorke

    Jane Martin

24. 

    Beau Bridges

    Dr. Barton Scully

Crew 2