Miles Teller character Andrew Neiman
J.K. Simmons character Terence Fletcher
Paul Reiser character Jim Neiman
Melissa Benoist character Nicole
Austin Stowell character Ryan Connolly
Chris Mulkey character Uncle Frank
Nate Lang character Carl Tanner
Charlie Ian character Dustin
Jayson Blair character Travis
Kavita Patil character Sophie
Damon Gupton character Mr. Kramer
Suanne Spoke character Aunt Emma
Max Kasch character Dorm Neighbor
Kofi Siriboe character Bassist (Nassau)
C.J. Vana character Metz
Tarik Lowe character Pianist (Studio Band)
Tyler Kimball character Saxophonist #2 (Studio Band)
Rogelio Douglas Jr. character Trumpeter #1 (Studio Band)
Adrian Burks character Trumpeter #2 (Studio Band)
Joseph Bruno character Technician (Overbrook) - Mike
Michael D. Cohen character Stage Hand (Overbrook)
Jocelyn Ayanna character Passerby (Bus Station)
Keenan Henson character Truck Driver
Janet Hoskins character Passerby (Dunellen)
April Grace character Rachel Bornholdt
Clifton 'Fou Fou' Eddie character Drummer (Quartet)
Calvin C. Winbush character Saxophonist
Marcus Henderson character Bassist (JVC)
Tony Baker character Stage Hand (Carnegie Hall)
Henry G. Sanders character Red Henderson
Sam Campisi character Andrew (8 years old)
Jimmie Kirkpatrick character Nassau Trumpeter #2
Keenan Allen character Studio Core Member #1
Ayinde Vaughan character Studio Core Member #2
Shai Golan character Studio Core Member #3
Yancey Wells character Studio Core Member #4
Candace Roberge character Student #1
Krista Kilber character Student #2
Stephen Hsu character JVC Guitarist (uncredited)
Herman Johansen character Music Competition Judge (uncredited)
Wendee Lee character Audience Member (uncredited)
Joseph Oliveira character Bartender (uncredited)
Michelle Ruff character Audience Member (uncredited)
Daniel Weidlein character Studio Band Saxophone Player (uncredited)
