Todd PhillipsDirector
Joaquin PhoenixArthur Fleck
Robert De NiroMurray Franklin
Zazie BeetzSophie Dumond
Frances ConroyPenny Fleck
Brett CullenThomas Wayne
Shea WhighamDetective Burke
Bill CampDetective Garrity
Glenn FleshlerRandall
Leigh GillGary
Josh PaisHoyt Vaughn
Rocco LunaGiGi Dumond
Marc MaronGene Ufland
Sondra JamesDr. Sally
Murphy GuyerBarry O'Donnell
Douglas HodgeAlfred Pennyworth
Dante Pereira-OlsonBruce Wayne
Carrie PutrelloMartha Wayne
Sharon WashingtonSocial Worker
Hannah GrossYoung Penny
Frank WoodDr. Stoner
Brian HenryCarl (Arkham Clerk)
April GraceArkham Psychiatrist
Tony HeadWGC Anchorman
