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
Ed Renninger
Barman
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
Ann McGowan
Ballet Teacher
Ron Voz
Butler
Cee Lo Green
Troublegum
Kena Onyenjekwe
Troublegum Posse 1 - Rappa DD
Harvey Morris
Troublegum Posse 2 - Phat Jimmy
Terry Lewis
Troublegum Crew Member - Benson
Colin Love
Singing Basketball Player
Jimmy Palumbo
Guy Shouting from Window
Simon Delaney
Lawyer
Danielle Brisebois
Singer
Keen Ruffalo
Keen
Melissa Maria Gonzalez
Chris
Nicholas Daniel Gonzalez
Zach
David Pendleton
Homeless Man
Madison Love
Singer Songwriter 1
Joanna Mauer
On Camera Musician
Erik Detusch
On Camera Musician
Rich Mercurio
On Camera Musician
Emilie Cardinaux
On Camera Musician
Curtis Fowlkes
On Camera Musician
Emily Yarbourgh
On Camera Musician
Erin Benin
On Camera Musician
Alexis Sykes
On Camera Musician
Julia Bruskin
On Camera Musician
Stacey Maltin
Young Girl
Sama Fernands
Concert Attendee (uncredited)
John Carney
Director
John Carney
Writer
Jeanne McCarthy
Casting
Yaron Orbach
Director of Photography
Tobin Armbrust
Producer
Andrew Marcus
Editor
Anthony Bregman
Producer
Chad Keith
Production Design
Gregg Alexander
Original Music Composer
Anne Goelz
Art Direction
Stephanie DeCourcey
Casting
Richard Hebrank
Construction Coordinator
Cathryn Hunt
Costume Coordinator
Yaneya Rovira
Wardrobe Supervisor
Eileen Goh
Costumer
Lair Paulsen
Key Hair Stylist
Drew Jiritano
Special Effects Coordinator
Margaret Moy
Costumer
Erin Hicks
Hair Department Head
Louise McCarthy
Makeup Department Head
Joanna McCarthy
Key Makeup Artist
Sean Garnhart
Sound Effects Editor
Steven Weisberg
Location Manager
Tom Ryan
ADR Recordist
J. Alex Finch
Second Second Assistant Director
Lewis Goldstein
Supervising Sound Editor
Alexis Wiscomb
Post Production Supervisor
Max Greene
Dialogue Editor
Erich Stratmann
Music Editor
Cate Montana
Supervising ADR Editor
Patrick Cicero
Dialogue Editor
Tom Ryan
Foley Recordist
Suzana Peric
Music Editor
Tom Ryan
Foley Editor
Lewis Goldstein
Sound Re-Recording Mixer
Andrea von Foerster
Music Supervisor
Judd Apatow
Producer
Rebecca Breckel
Script Supervisor
Matthew Sullivan
Music Supervisor
Shira Rockowitz
Co-Producer
Ian Watermeier
Co-Producer
Sam Hoffman
Unit Production Manager
Mariela Comitini
First Assistant Director
Rob Harlow
Key Grip
Brian Smyj
Stunt Coordinator
Ben Nearn
Executive Producer
Guy East
Executive Producer
Marc Schipper
Executive Producer
Andrew D. Schwartz
Still Photographer
Lauren Selig
Co-Producer
Brian Carmichael
Video Assist Operator
Arjun Bhasin
Costume Design
Tom Rice
Executive Producer
Nigel Sinclair
Executive Producer
Scott Tinsley
First Assistant Camera
James Baker
Boom Operator
Sam Hoffman
Executive Producer
Molly Smith
Executive Producer
Kris Moran
Set Decoration
Maura Kelly
Second Assistant Director
Ludovic Littee
"A" Camera Operator
Shawn Greene
Gaffer
Gina Herold
Art Department Coordinator
T.J. Horan
Leadman
Tommy Allen
Property Master
Jennifer Crammer
Production Coordinator
Tod A. Maitland
Sound Mixer
Andrew Francis
Digital Intermediate Colorist