Margot RobbieHarley Quinn
Mary Elizabeth WinsteadHelena Bertinelli / Huntress
Jurnee SmollettDinah Lance / Black Canary
Ewan McGregorRoman Sionis
Ella Jay BascoCassandra Cain
Chris MessinaVictor Zsasz
Sara MontezShallow Friend #1 / Kathrine
Izabel PakzadShallow Friend #2
Daniel BernhardtSionis' Chauffeur
Jacky ShuSkeptical Teammate
Paloma Esparza RabinovBitchy Teammate
Derek WilsonDetective Tim Munroe
Joe Bucaro IIICarlos Rossi
James Henry Williams Jr.Ace Chemical Police Officer
Anna MikamiMiss Keo (16 yrs)
Bruno OliverBodega Cook (Sal)
Keisha TuckerRoller Derby Girl
Jeremy DenzlingerDesk Sergeant
Michael MasiniOfficer Drago
Charles CarpenterProcessing Officer
Steven WilliamsCaptain Patrick Erickson
Charlene AmoiaMaria Bertinelli
Robert CatriniStefano Galante
Eddie AlfanoHelena's Bodyguard
Chris CarnelDesk Sergeant
Buddy SosthandCoffee Cup Cop
Shawn BalentineKey Card Cop
Shahaub RoudbariSmarmy Guy
Pramod KumarIrate Shopkeeper
Christine EnghElderly Woman
David BianchiSionis Henchman #1
Terrence JulienCell Guard
Efka KvaraciejusMercenary
Eric Michael ColeDisgruntled Man
Oakley LehmanMercedes Gang
Richard KingMercedes Gang
Judy KainBespectacled Secretary (uncredited)
Rj WayneTough Guy (uncredited)
Zack WhyelRoman's Healer (uncredited)
Ellay WatsonRoller Derby Fan (uncredited)
Karen TelihaNun (uncredited)
Nev SmithGotham Detective (uncredited)
Greice SantoScantily Clad Crystal (uncredited)
Zeus SagittariusRoman's Goon (uncredited)
Talon ReidRoman's Goon (uncredited)
Matthew Parry-JonesClub Goer (uncredited)
Brian NuesiHusband (uncredited)
Adinett NsabimanaGirl at the Bar (uncredited)
Brandon Garic NotchRoman's Lift Goon (uncredited)
Anthony MolinariMafiosi (uncredited)
Ego MikitasDon (uncredited)
Lenora MayMrs. Marcucci (uncredited)
Jeff LiparyBBB Gang Member (uncredited)
Brandon IrvinRoman's Goon (uncredited)
Damon HoffmanBodybuilder (uncredited)
William GuirolaThug (uncredited)
Nico GreethamYoung Goon (uncredited)
Luis Richard GomezHarley Super Fan (uncredited)
Shad GaspardLords Leader (uncredited)
Julian GarciaRoman's Goon (uncredited)
Eddie J. FernandezGauntlet Cop (uncredited)
Mike FergusonLord of the Avenue (uncredited)
Gerald DowneyJudge (uncredited)
Jack DourakosClub Goer (uncredited)
Sadyr DioufRoman's Goon (uncredited)
Dan ColeOfficer Timm (uncredited)
Lucas Di MedioRoman's Bodyguard (uncredited)
Jason CatronSprang Bridge Soldier (uncredited)
David Anthony BuglioneJoe Bertinelli (uncredited)