Michael Uslan

Executive Producer

Brian Tyree Henry

Carl (Arkham Clerk)

Robert De Niro

Murray Franklin

Bruce Berman

Executive Producer

Walter Hamada

Executive Producer

Frances Conroy

Penny Fleck

Douglas Hodge

Alfred Pennyworth

Marc Maron

Gene Ufland

Zazie Beetz

Sophie Dumond

Shea Whigham

Detective Burke

April Grace

Arkham Psychiatrist

Frank Wood

Dr. Stoner

Aaron L. Gilbert

Executive Producer

Brett Cullen

Thomas Wayne

Joaquin Phoenix

Arthur Fleck

Sondra James

Dr. Sally

Murphy Guyer

Barry O'Donnell

Sharon Washington

Social Worker

Todd Phillips

Writer

Josh Pais

Hoyt Vaughn

Bill Camp

Detective Garrity

Glenn Fleshler

Randall

Dante Pereira-Olson

Bruce Wayne

Leigh Gill

Gary

Rocco Luna

GiGi Dumond

Carrie Louise Putrello

Martha Wayne

Hannah Gross

Young Penny

Mick Szal

Woman on Subway

Carl Lundstedt

Wall Street Three

Scott Silver

Writer

Richard Baratta

Executive Producer

Joseph Garner

Executive Producer