Series Cast 64

1. 

   Dan Stevens

   David Haller / Legion (27 Episodes)

2. 

   Rachel Keller

   Sydney ‘Syd’ Barrett (27 Episodes)

3. 

   Aubrey Plaza

   Lenny Busker (27 Episodes)

4. 

   Jeremie Harris

   Ptonomy Wallace (27 Episodes)

5. 

   Amber Midthunder

   Kerry Loudermilk (27 Episodes)

6. 

   Bill Irwin

   Cary Loudermilk (27 Episodes)

7. 

   Hamish Linklater

   Clark Debussy (22 Episodes)

8. 

   Jean Smart

   Melanie Bird (20 Episodes)

9. 

   Navid Negahban

   Amahl Farouk / Shadow King (19 Episodes)

10. 

    Luke Roessler

    David Haller (6-8 Years) (11 Episodes), David (5 Episodes)

11. 

    Katie Aselton

    Amy Haller (9 Episodes)

12. 

    Mackenzie Gray

    The Eye (8 Episodes)

13. 

    Lauren Tsai

    Jia-Yi / Switch (8 Episodes)

14. 

    Quinton Boisclair

    Devil with the Yellow Eyes (8 Episodes)

15. 

    Ellie Araiza

    Philly (5 Episodes)

16. 

    Devyn Dalton

    Angry Boy (5 Episodes)

17. 

    Stephanie Corneliussen

    Gabrielle (4 Episodes)

18. 

    Jemaine Clement

    Oliver Bird (4 Episodes)

19. 

    Brad Mann

    Rudy (4 Episodes)

20. Nathan Hurd

    The Monk (4 Episodes)

21. 

    Harry Lloyd

    Charles Xavier / Professor X (3 Episodes)

22. 

    Scott Lawrence

    Dr. Poole (3 Episodes)

23. 

    Kirby Morrow

    Benny (2 Episodes), Large Man Karl (1 Episode)

24. 

    David Selby

    Brubaker (3 Episodes)

25. 

    David Ferry

    Dr. Kissinger (3 Episodes)

26. 

    Tatyana Forrest

    David's Mother (3 Episodes)

27. 

    Dario Giordani

    David's Father (3 Episodes)

28. 

    Christian Convery

    David (4 Years Old) (3 Episodes)

29. 

    Lillian Lim

    The Monk (2 Episodes)

30. 

    Eddie Jemison

    The Greek (2 Episodes)

31. 

    Daniel Kailin

    Asian Teenager (2 Episodes)

32. 

    Stephanie Van Dyck

    Skeletal Fat Lady (2 Episodes)

33. 

    Keir O'Donnell

    Daniel (2 Episodes)

34. 

    Sebastian Billingsley-Rodriguez

    David (Toddler) (2 Episodes)

35. 

    Jason Mantzoukas

    Jerome / Wolf (1 Episode)

36. Sophie Mackenzie Nack

    Sweetie (1 Episode)

37. 

    Margaux Brooke

    Eloise (1 Episode)

38. 

    Matt Hamilton

    Ben (1 Episode)

39. Mike Azevedo

    'Renal Failure' Alvarez (1 Episode)

40. 

    Ese Atawo

    Day Room Duty Nurse (1 Episode)

41. 

    June B. Wilde

    Science Teacher (1 Episode)

42. 

    Maddie Phillips

    Jr. Prom Date (Crying) (1 Episode)

43. Stephanie Lavigne

    Patient Dancer #7 (1 Episode)

44. 

    Camille Mitchell

    Dr. Bates (1 Episode)

45. 

    Jillian Dion

    Irma Whitecloud (1 Episode)

46. Emily Shuttleworth

    Angry Boy (1 Episode)

47. 

    Gabriel Jacob-Cross

    Ptonomy (5 yrs) (1 Episode)

48. 

    Paul Belsito

    The Man Who Hides (1 Episode)

49. 

    Sharlene Royer

    Ptonomy's Mom (1 Episode)

50. Jesse Chongo

    Buster Debusey (1 Episode)

51. 

    Paul Jarrett

    General Stanley (1 Episode)

52. 

    Jennifer Kitchen

    Burt Hart (1 Episode)

53. Ben Dextraze

    Aide (1 Episode)

54. 

    Christopher Collins

    Wall Street Frat Boy (1 Episode)

55. 

    Nathan Blair

    10 Year Old Boy (1 Episode)

56. 

    Molly Hagan

    Laura Mercer (1 Episode)

57. 

    Seamus Dever

    Don Eichman (1 Episode)

58. 

    Valentina Izumi

    David's wife (1 Episode)

59. 

    Lily Rabe

    Joan Barrett (1 Episode)

60. 

    Pearl Amanda Dickson

    Teen Syd (1 Episode)

61. 

    Violet Hicks

    Young Syd (1 Episode)

62. Audrey Lynn

    6 Year Old Syd (1 Episode)

63. 

    Carmela Nozza Guizzo

    Young Amy (4 yrs) (1 Episode)

64. 

    Lola Raie

    Singing Girl #3 (1 Episode)

Series Crew 51