On screen
Cast
14 credited performers
Michael Cera
Gunther
Jack A. O'Connell
Mr. Hartman
Charles Grodin
Father
Kelis
Herself
Artwork unavailable
Brandon Reilly
Dougie
Curtiss Cook
Conrad
Charlotte Booker
Mrs. Hartman
Andy Prosky
Dr. Schwartz
Christina Sajous
Backup Singer
Artwork unavailable
Deonna Bouyue
Backup Singer
Artwork unavailable
Heems
Recording Engineer
Artwork unavailable
Andrew Levine
Adler
Artwork unavailable
Adam Levite
Man in Recording Studio
Artwork unavailable
Caroline Capers Powers
Dr. Schwartz's Date