Robin Williams Maxwell "Wizard" Wallace
Freddie Highmore August Rush
Jonathan Rhys Meyers Louis Connelly
Terrence Howard Richard Jeffries
Marian Seldes The Dean
Becki Newton Jennifer
Mykelti Williamson Reverend James
Alex O'Loughlin Marshall
William Sadler Thomas Novacek
Leon G. Thomas III Arthur
Keri Russell Lyla Novacek
Aaron Staton Nick
Robert Greenhut Executive Producer, Unit Production Manager
John Cenatiempo Stunts
Jamia Simone Nash Hope
Jamal Joseph Driver
Carol Silverman Set Decoration
Zach Page Child Guitar Player
Sean Haberle Frank
Paul Castro Story
Robert Aberdeen Record Executive
Timmy Mitchum Joey
Paul Thornton Alcoholic (uncredited)
John Knox Club Manager
William Steinkamp Editor
Nick Castle Screenplay, Story
Michael Drayer Mannix
Tyler McGuckin Peter
Ralph Kamp Executive Producer
Kate Bulpitt Casting Associate
Blaise Corrigan Stunt Coordinator
Richard Barton Lewis Producer
Dominic Colón Policeman
Miky Lee Executive Producer
Kirsten Sheridan Director
James V. Hart Screenplay
Victor Verhaeghe Cop
Bonnie McKee Lizzy
Ronald Guttman Professor
Cesar Quinones Location Scout
Jessica Lichtner Script Supervisor
John Mathieson Director of Photography
Frank L. Fleming Costume Design
Michael Shaw Production Design
Mark Mancina Original Music Composer
Cathy Sandrich Gelfond Casting
Lionel Wigram Executive Producer
Felice Diamond Makeup Artist
Amanda Mackey Casting
Farrah Fox-Collis Casting Associate
John Farrer Violinist (uncredited)
Richard F. Esposito Hairstylist
Garson Yu Title Designer
Craig Johnson Orphanage Boy
Joshua Jaymz Doss Orphanage Kid
Dina Gardener Gospel Singer
Jamie O'Keeffe Steve
Jacquelen Singleton Street Sound Circle
Gabrielle Jerou-Tabak Associate Producer
Georgia Creighton Apartment Owner
Yvette Bodrick Street Sound Circle
Raymond Johnson Gospel Singer
Jindai Joseph Street Sound Circle
Adia Beckford Gospel Singer
Travis Veada Street Sound Circle
Bilal Bishop Roller Bull
Mario Ventenilla Art Direction
Talif Showers Gospel Singer
Amma Agyapon Gospel Singer
Joyce Walker Joseph Gospel Singer
Dietrice A. Bolden Gospel Singer
Luther Isler Gospel Singer