Mark Ruffalo

Dan Mulligan

Keira Knightley

Gretta James

Adam Levine

Dave Kohl

Hailee Steinfeld

Violet Mulligan

Catherine Keener

Miriam Hart

James Corden

Steve

Yasiin Bey

Saul

Aya Cash

Jenny

Maddie Corman

Phillis

Karen Pittman

Business Woman

Paul Romero

Bartender

Andrew Sellon

Christian Father

Eric Burton

Singer Songwriter 2

Marco Assante

Marco

Mary Catherine Garrison

Jill

Jen Jacob

Dave Fangirl

Rob Morrow

CEO

Jennifer Li Jackson

Mim

Ian Brodsky

Malcolm

Shannon Walsh

Rachel

David Abeles

Glen

Cee Lo Green

Troublegum

Kena Onyenjekwe

Troublegum Posse 1 - Rappa DD

Harvey Morris

Troublegum Posse 2 - Phat Jimmy

Jimmy Palumbo

Guy Shouting from Window

Simon Delaney

Lawyer

Danielle Brisebois

Singer

Keen Ruffalo

Keen

Nicholas Daniel Gonzalez

Zach

David Pendleton

Homeless Man

Madison Love

Singer Songwriter 1

Stacey Maltin

Young Girl

Sama Fernands

Concert Attendee (uncredited)