Charlyne Yi portrays the character of Charlyne Yi in the movie.
Demetri Martin plays the role of Himself in the film.
Jake Johnson takes on the character of Nicholas Jasenovec in Paper Heart.
Given Sharp appears as Herself in the movie.
Martin Starr portrays the role of Himself in Paper Heart.
Michael Cera takes on the character of Himself in the film.
Gill Summers appears as Himself in Paper Heart.
Seth Rogen plays the role of Himself in the movie.
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