Robert De Niro Murray Franklin
Bradley Cooper Producer
Joaquin Phoenix Arthur Fleck
Justin Theroux Ethan Chase (uncredited)
Zazie Beetz Sophie Dumond
Shea Whigham Detective Burke
Frances Conroy Penny Fleck
Isabella Ferreira Flirting Woman on the Bus (uncredited)
Brett Cullen Thomas Wayne
Brian Tyree Henry Carl (Arkham Clerk)
Glenn Fleshler Randall
Douglas Hodge Alfred Pennyworth
Jerry Robinson Characters
Bill Camp Detective Garrity
Marc Maron Gene Ufland
Bob Kane Characters
Hannah Gross Young Penny
Bill Finger Characters
John Cenatiempo Stunts, Aftermath Police Officer
Bryan Callen Haha's Stripper
Leigh Gill Gary
Sandy Hamilton Property Master
Rich Campbell Murray Franklin Band
Todd Phillips Director, Producer, Writer
Frank Miller Thanks
April Grace Arkham Psychiatrist
Josh Pais Hoyt Vaughn
Scott Silver Writer
Frank Wood Dr. Stoner
Murphy Guyer Barry O'Donnell
Chris Cenatiempo Stunts
Chris Redd Comedy Club Emcee
Tom Ozanich Sound Designer, Sound Re-Recording Mixer
Jill Brown Stunts
Kay Georgiou Hair Department Head
Dean A. Zupancic Sound Re-Recording Mixer
Jeff McCarthy NCB Anchor
Sondra James Dr. Sally
Ray Iannicelli Haha's Clown
Mark Bridges Costume Design
Thomas J. O'Connell ADR Mixer
Geoffrey Haley "A" Camera Operator, Steadicam Operator
Carla Raij Unit Production Manager
Richard Burden Stunts
Peter Epstein Stunts
Jeff Groth Editor
Walter Hamada Executive Producer
Jeff Atmajian Orchestrator
John T. Cucci Foley Artist
Jason Cloth Co-Executive Producer
Michael Uslan Executive Producer
Dan O'Connell Foley Artist
Jeff Brink Special Effects Coordinator
Peter Hans Benson Good Morning Host
Randall Poster Music Supervisor
Blaise Corrigan Taxi Driver (uncredited)
Carolina Jiménez Layout
Bruce Berman Executive Producer
Lisa Dennis Post Production Supervisor
Keith Giffen Thanks
David Webb Co-Producer, First Assistant Director
Shade Rupe Bartender (uncredited)
Carla White Makeup Artist
Gregory Irwin First Assistant "A" Camera
G.A. Aguilar Stunt Coordinator
Tod A. Maitland Sound Mixer
Jerry Yuen Utility Sound
Kira Roessler Supervising Dialogue Editor, Supervising ADR Editor
Brian Adler Visual Effects
Emma Tillinger Koskoff Producer
John Joseph Thomas Sound Effects Editor
Dante Pereira-Olson Bruce Wayne