Arthur Fleck

Joaquin Phoenix

Acting

Lee Quinzel

Lady Gaga

Acting

Jackie Sullivan

Brendan Gleeson

Acting

Maryanne Stewart

Catherine Keener

Acting

Sophie Dumond

Zazie Beetz

Acting

Paddy Meyers

Steve Coogan

Acting

Harvey Dent

Harry Lawtey

Acting

Gary Puddles

Leigh Gill

Acting

Dr. Victor Liu

Ken Leung

Acting

Ricky Meline

Jacob Lofland

Acting

Judge Herman Rothwax

Bill Smitrovich

Acting

Debra Kane

Sharon Washington

Acting

Ernie Bullock

Alfred Rubin Thompson

Acting

Young Inmate

Connor Storrie

Acting

Music Teacher

Gregg Daniel

Acting

Arkham Guard

Mac Brandt

Acting

Arkham Guard

George Carroll

Acting

Arkham Guard

John Lacy

Acting

Arkham Guard

Tim Dillon

Acting

E Ward Inmate

Wayne Dehart

Acting

E Ward Inmate

Troy Fromin

Acting

E Ward Inmate

Ajgie Kirkland

Acting

E Ward Inmate

Terrance T.P. Polite

Acting

E Ward Inmate

Jimmy Walker Jr.

Acting

E Ward Inmate

Toney Wilson

Acting

Dr. Louise Beatty

June Carryl

Acting

Paddy Meyers' Producer

Don McManus

Acting

Head Bailiff

G.L. McQueary

Acting

Jury Foreman

Angela D. Watson

Acting

White Chapel Minister

Murphy Guyer

Acting

Junior Associate

Carson Higgins

Acting

Masked Joker Driver

Gattlin Griffith

Acting

Joker Doppelganger

Hudson Oz

Acting

Victim's Dad

Ray Lykins

Crew

Joker Fan #1

Will Ropp

Acting

Joker Fan #2

Ashton Moio

Acting

Joker Fan #3

Emilio Rojas

Acting

Police Escort

Joe Spinney

Acting

Additional Guard

Richard Busser

Acting

Additional Guard

Brian Donahue

Acting

Additional Guard

Mike Houston

Acting

Additional Guard

Jess King

Crew

Additional Guard

Jimmy Smagula

Acting

Stan L. Brooks (voice)

Stephen Stanton

Acting

News Anchor

Martin Kildare

Acting

Reporter

Laurie Dawn

Acting

Reporter

Steven X. Greenfield

Acting

Reporter

Dominiqué Williams-Blair

Acting

Reporter

Barry Bonder

Acting

Back-up Singer

Kaylah Sharve' Baker

Acting

Back-up Singer

Ashley Levin

Acting

Back-up Singer

Celeste Butler

Acting

Music Room Pianist

Alex Wesley Smith

Acting

Arkham Guard (uncredited)

Robert Loftus

Acting

Singer (uncredited)

Casey Burke

Acting