Acteur:
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1. Amy (1999), série...Rob Holbrook
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2. Garden State (2004), film...Tim
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3. The Great New Wonderful (2005), film...Justin
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4. Une Star dans ma vie (2006), film...Receptionist
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5. L'école des dragueurs (2006), film...Classmate
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6. Gardener of Eden (2007), film...Spim
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7. The Big Bang Theory (2007), série...Sheldon Cooper
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8. Long Island Medium (2010), série...Self
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9. Les Muppets, le retour (2011), film...Human Walter
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10. The Big Year (2011), film...Crane
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11. The Normal Heart (2014), film...Tommy Boatwright
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12. Le rôle de ma vie (2014), film...Paul
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13. Elf: Buddy's Musical Christmas (2014), film
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14. Larry Kramer in Love and Anger (2015), film...Tommy Boatwright (archive footage)
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15. Visions (2015), film...Dr. Mathison
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16. Larry Kramer In Love & Anger (2015), film...Tommy Boatwright (archive footage)
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17. Les figures de l'ombre (2016), film...Paul Stafford
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18. For the Love of Spock (2016), film...Self
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19. Young Sheldon (2017), série...Sheldon Cooper
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20. Pete the Cat (2017), série...Stan
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21. A Kid Like Jake (2018), film...Greg Wheeler
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...Self
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23. The Boys in the Band (2020), film...Michael
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24. The Boys in the Band : Entre nous (2020), film...Self
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25. Staged (2020), série...Jim Parsons
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26. Hollywood (2020), série...Henry Willson
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27. Spoiler Alert (2022), film...Michael Ausiello
Producteur:
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1. A Kid Like Jake (2018), film
Voix:
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1. En route! (2015), film...Oh
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...Truman Capote
Narrateur:
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1. First in Human (2017), série