Whiplash

Miles Teller

Andrew

J.K. Simmons

Fletcher

Paul Reiser

Jim

Melissa Benoist

Nicole

Austin Stowell

Ryan

Nate Lang

Carl

Chris Mulkey

Uncle Frank

Damon Gupton

Mr. Kramer

Suanne Spoke

Aunt Emma

Max Kasch

Dorm Neighbor

Charlie Ian

Dustin

Jayson Blair

Travis

Kofi Siriboe

Bassist (Nassau)

Kavita Patil

Assistant - Sophie

C.J. Vana

Metz

Tarik Lowe

Pianist (Studio Band)

Tyler Kimball

Saxophonist #2 (Studio Band)

Rogelio Douglas Jr.

Trumpeter #1 (Studio Band)

Adrian Burks

Trumpeter #2 (Studio Band)

Calvin C. Winbush

Saxophonist (Studio Band)

Joseph Bruno

Technician (Overbrook) - Mike

Michael D. Cohen

Stage Hand (Overbrook)

Jocelyn Ayanna

Passerby (Bus Station)

Keenan Henson

Truck Driver

Janet Hoskins

Passerby (Dunellen)

April Grace

Rachel Bornholdt

Clifton 'Fou Fou' Eddie

Drummer (Quartet)

Marcus Henderson

Bassist (JVC)

Tony Baker

Stage Hand (Carnegie Hall)

Henry G. Sanders

Red Henderson

Sam Campisi

Andrew (8 years old)

Jimmie Kirkpatrick

Nassau Trumpeter #2

Keenan Allen

Studio Core Member #1

Ayinde Vaughan

Studio Core Member #2

Shai Golan

Studio Core Member #3

Yancey Wells

Studio Core Member #4

Candace Roberge

Student #1

Krista Kilber

Student #2

Stephen Hsu

JVC Guitarist (uncredited)

Herman Johansen

Music Competition Judge (uncredited)

Wendee Lee

Audience Member (uncredited)

Joseph Oliveira

Bartender (uncredited)

Michelle Ruff

Audience Member (uncredited)

Daniel Weidlein

Studio Band Saxophone Player (uncredited)