| Actor/Actress |
Role |
| Margot Robbie |
Harleen Quinzel / Harley Quinn |
| Ewan McGregor |
Roman Sionis / Black Mask |
| Mary Elizabeth Winstead |
Helena Bertinelli / Huntress |
| Jurnee Smollett |
Dinah Lance / Black Canary |
| Rosie Perez |
Detective Renee Montoya |
| Chris Messina |
Victor Zsasz |
| Ella Jay Basco |
Cassandra Cain |
| Ali Wong |
Ellen Yee |
| Matthew Willig |
Happy |
| Dana Lee |
Doc |
| Steven Williams |
Patrick Erickson |
| Robert Catrini |
Stefano Galante |
| Daniel Bernhardt |
Sionis' Chauffeur |
| François Chau |
Mr. Keo |
| Miyuki Matsunaga |
Mrs. Keo |
| Anna Mikami |
Miss Keo |
| Paul Lasa |
Franco Bertinelli |
| Charlene Amoia |
Maria Bertinelli |
| Ella Mika |
Young Helena Bertinelli |
| Derek Wilson |
Tim Evans |
| Bojana Novaković |
Erika |
| Andy Hoff |
Erika's Date |
| Bruno Oliver |
Sal |
| Michael Masini |
Officer Dargo |
| Judy Kain |
Bespectacled Secretary |
| David Bianchi |
Henchman |
| Rj Wayne |
Tough Guy |
| Eddie Alfano |
Helena's Bodyguard |
| Simon Rhee |
Cell Guard |
| Sala Baker |
Prisoner |
| Zack Whyel |
Roman's Healer |
| Ellay Watson |
Roller Derby Fan |
| Karen Teliha |
Nun |
| Nev Smith |
Gotham Detective |
| Greice Santo |
Scantily Clad Crystal |
| Zeus Sagittarius |
Roman's Goon |
| Talon Reid |
Roman's Goon |
| Diezel Ramos |
Gotham Detective |
| Matthew Parry-Jones |
Club Goer |
| Brian Nuesi |
Husband |
| Adinett Nsabimana |
Girl at the bar |
| Brandon Garic Notch |
Roman's lift Goon |
| Anthony Molinari |
Mafiosi |
| Ego Mikitas |
Don |
| Jenelle McKee |
Hot Couple |
| Lenora May |
Mrs. Marcucci |
| Jeff Lipary |
BBB Gang Member |
| Brandon Irvin |
Roman's Goon |
| Damon Hoffman |
Bodybuilder |
| William Guirola |
Thug |
| Nico Greetham |
Young Goon |
| Luis Richard Gomez |
Harley Super Fan |
| Shad Gaspard |
Lords Leader |
| Julian Garcia |
Roman's Goon |
| Eddie J. Fernandez |
Gauntlet Cop |
| Mike Ferguson |
Lord of the Avenue |
| Gerald Downey |
Judge |
| Jack Dourakos |
Club Goer |
| Sadyr Diouf |
Roman's Goon |
| Joey Courteau |
Club Dancer |
| Dan Cole |
Officer Timm |
| Gianluca Di Medio Ceccarelli |
Roman's bodyguard |
| Jason Catron |
Sprang Bridge Soldier |
| David Anthony Buglione |
Joe Bertinelli |
| Tim Rigby |
RR Passenger |
| Richard King |
Mercedes Gang |
| Oakley Lehman |
Mercedes Gang |
| Eric Michael Cole |
Disgruntled man |
| Dennis Keiffer |
Mercenary |
| Sam Hargrave |
Mercenary |
| Efka Kvaraciejus |
Mercenary |
| Kofi Yiadom |
Mercenary |
| Bryan Sloyer |
Prisoner |
| Christian Womack |
Prisoner |
| Panuvat Anthony Nanakornpanom |
Prisoner |
| Caleb Spillyards |
Prisoner |
| George Crayton |
Prisoner |
| Terrence Julien |
Cell Guard |
| K.K. Barrett |
Dr. Aguilar |
| Christine Engh |
Elderly Woman |
| Pramod Kumar |
Irate shopkeeper |
| Shahaub Roudbari |
Smarmy Guy |
| Shawn Balentine |
Key Card Cop |
| Tim Sitarz |
Donut Cop |
| Buddy Sosthand |
Coffee Cup Cop |
| Chris Carnel |
Desk Sergeant |
| Jesse Bush |
Patrol Cop |
| Charles Carpenter |
Processing Officer |
| Jeremy Denzlinger |
Desk Sergeant |
| Keisha Tucker |
Roller Derby Girl |
| James Henry Williams Jr. |
Ace Chemical Police Officer |
| Joe Bucaro III |
Carlos Rossi |
| Paloma Rabinov |
Bitchy Teammate |
| David Ury |
Sleazy Breeder |
| Sara Montez |
Shallow Friend #1 |
| Izabel Pakzad |
Shallow Friend #2 |
| Kc Strubbe |
Naïve Teammate |
| Jacky Shu |
Skeptical Teammate |
| Daniel Cole |
Patrol Cop |
| Qiang Li |
Prisoner |
