Series Cast 73

1. 

   David Letterman

   Self - Host (4252 Episodes)

2. 

   Paul Shaffer

   Self -Musical Director (4252 Episodes)

3. Alan Kalter

   Self - Announcer (voice) (3813 Episodes)

4. Bill Wendell

   Self - Announcer (voice) (439 Episodes)

5. Edd Hall

   Voiceover Announcer (voice) (7 Episodes), Narrator (Mailman Kept Mail at His House) (voice) (1 Episode), Various VOs (voice) (1 Episode), 'The Queen visits a TV Show' Voiceover (voice) (1 Episode), 'Tonight Show' Announcer (1 Episode), 'Otis Elevator App Commercial' Voiceover (voice) (1 Episode), 'A Message For Allergy Sufferers' Voiceover (voice) (1 Episode)

6. 

   Scarlett Johansson

   Self (4 Episodes)

7. 

   Emily Blunt

   Herself (1 Episode)

8. 

   Maggie Gyllenhaal

   Herself (1 Episode)

9. 

   Neil Young

   Himself (1 Episode)

10. 

    Harry Styles

    Himself (1 Episode)

11. 

    Louis Tomlinson

    Himself (1 Episode)

12. 

    Liam Payne

    Himself (1 Episode)

13. 

    Zayn Malik

    Himself (1 Episode)

14. 

    Niall Horan

    Himself (1 Episode)

15. 

    Prince

    — (1 Episode)

16. Kirk Johnson

    — (1 Episode)

17. Rhonda Smith

    — (1 Episode)

18. Morris Hayes

    — (1 Episode)

19. Kat Dyson

    — (1 Episode)

20. Eric Leeds

    — (1 Episode)

21. 

    Al Pacino

    Himself (1 Episode)

22. 

    Miles Kath

    Young Lettermen (1 Episode)

23. 

    Jessica Jung

    Herself (1 Episode)

24. 

    Yoona

    Herself (1 Episode)

25. 

    Taeyeon

    Herself (1 Episode)

26. 

    Kwon Yu-ri

    Herself (1 Episode)

27. 

    Hyoyeon

    Herself (1 Episode)

28. 

    Sunny

    Herself (1 Episode)

29. 

    Tiffany Young

    Herself (1 Episode)

30. 

    Choi Soo-young

    Herself (1 Episode)

31. 

    Seohyun

    Herself (1 Episode)

32. 

    Susan Sarandon

    Self (1 Episode)

33. 

    Whitney Cummings

    Self (1 Episode)

34. 

    Angel Olsen

    Self (1 Episode)

35. 

    Julio Iglesias

    Self - Musical Guest (1 Episode)

36. 

    Gary Sinise

    Self - Guest (1 Episode)

37. 

    Ricki Lake

    Self - Guest (1 Episode)

38. Cody Arens

    Self (1 Episode)

39. 

    Alicia Keys

    Self (1 Episode)

40. 

    Bruce Willis

    Self (1 Episode)

41. 

    Julianna Margulies

    Self - Guest (1 Episode)

42. 

    Eric Ripert

    Self - Guest (1 Episode)

43. 

    Joe Seaward

    Self - Musical Guest (1 Episode)

44. 

    Drew MacFarlane

    Self - Musical Guest (1 Episode)

45. 

    Dave Bayley

    Self - Musical Guest (1 Episode)

46. 

    Edmund Irwin-Singer

    Self - Musical Guest (1 Episode)

47. 

    Lisa Howard

    Lt. Genevieve Marshall (1 Episode)

48. 

    Tom Mison

    Self - Guest (1 Episode)

49. 

    Taylor Swift

    Self - Musical Guest (1 Episode)

50. John Grant

    Self (1 Episode)

51. Nia Sanchez

    Self (1 Episode)

52. 

    Christopher Walken

    Self (1 Episode)

53. 

    Janelle Monáe

    Self (1 Episode)

54. 

    Tatiana Maslany

    Self (1 Episode)

55. 

    Regis Philbin

    Self (1 Episode)

56. 

    Paul Morrissey

    Self (1 Episode)

57. 

    Olivia Wilde

    Self (1 Episode)

58. 

    Shep Gordon

    Self (1 Episode)

59. 

    Dana Carvey

    Self (1 Episode)

60. 

    Ellie Kemper

    Self (1 Episode)

61. 

    Sam Smith

    Self (1 Episode)

62. 

    Paul Rudd

    Self (1 Episode)

63. 

    Jeff Altman

    Self (1 Episode)

64. 

    Adam Levine

    Self (1 Episode)

65. Gen. Frank J. Grass

    Self (1 Episode)

66. 

    Melissa McCarthy

    Self (1 Episode)

67. 

    Rachelle Lefevre

    Self (1 Episode)

68. 

    Lady Gaga

    Self - Guest (1 Episode)

69. 

    Eric Stonestreet

    Self - Guest (1 Episode)

70. Justin Hayward-Young

    Self - Musical Guest (1 Episode)

71. Árni Árnason

    Self - Musical Guest (1 Episode)

72. Timothy Lanham

    Self - Musical Guest (1 Episode)

73. Yoann Intonti

    Self - Musical Guest (1 Episode)

Series Crew 3