Joker— Full Cast

Joaquin Phoenix

as Arthur Fleck

Robert De Niro

as Murray Franklin

Zazie Beetz

as Sophie Dumond

Frances Conroy

as Penny Fleck

Brett Cullen

as Thomas Wayne

Shea Whigham

as Detective Burke

Bill Camp

as Detective Garrity

Glenn Fleshler

as Randall

Leigh Gill

as Gary

Josh Pais

as Hoyt Vaughn

Rocco Luna

as GiGi Dumond

Marc Maron

as Gene Ufland

Sondra James

as Dr. Sally

Murphy Guyer

as Barry O'Donnell

Douglas Hodge

as Alfred Pennyworth