Ben Affleck as Batman / Bruce Wayne

Henry Cavill as Superman / Clark Kent

Gal Gadot as Wonder Woman / Diana Prince

Ray Fisher as Cyborg / Victor Stone

Jason Momoa as Aquaman / Arthur Curry

Ezra Miller as The Flash / Barry Allen

Ciarán Hinds as Steppenwolf (voice)

Amy Adams as Lois Lane

Willem Dafoe as Vulko

Jeremy Irons as Alfred

Jesse Eisenberg as Lex Luthor

Diane Lane as Martha Kent

Connie Nielsen as Queen Hippolyta

J.K. Simmons as Commissioner Gordon

Ryan Zheng as Ryan Choi

Amber Heard as Mera

Joe Morton as Silas Stone

Lisa Loven Kongsli as Menalippe

David Thewlis as Ares

Ann Ogbomo as Philippus

Ágústa Eva Erlendsdóttir as Young Icelandic Woman

Björt Sigfinnsdóttir as Young Icelandic Woman

Salome R. Gunnarsdottir as Singing Icelandic Woman

Kristbjörg Kjeld as Old Icelandic Woman

Ingvar E. Sigurðsson as Mayor

Védís Vífilsdóttir as Icelandic Child (Girl)

Snæfríður Rán Aðalsteins as Icelandic Child (Girl)

Marc McClure as Jerry

Michael McElhatton as Black Clad Alpha

John Dagleish as Black Clad Beta

Charlotte Comer as School Chaperone

Lara Decaro as School Girl

Serene Angus as School Girl's Friend

Anna Burgess as School Girl's Friend

Mia Burgess as School Girl's Friend

Alison Chang as School Girl's Friend

Constance Bole as School Girl's Friend

Shahla Ayamah as School Girl's Friend

Chris Courtenay as Old Bailey Judge

Heather Imbeah as Old Bailey Clerk

Carla Turner as School Teacher

Grace Cookey-Gam as Old Bailey Lawyer

Matthew Bates as Old Bailey Hostage

Gary Reimer as Task Force Sniper

Robbie Gee as Task Force Lead

Jim Sturgeon as Task Force Deputy

Doutzen Kroes as Venelia

Eleanor Matsuura as Epone

Samantha Win as Euboea

Brooke Ence as Penthiselea

Anthony Wise as Howard the Janitor

Jérôme Pradon as Louvre Conservationist

Richard Clifford as French Archaeologist

Rebecca C. Perfect as News Reporter at Isle of Crete

Vincent Riotta as CID Chief Detective

Edward Mitchell as CID Officer

Mark Arnold as Containment Centre Scientist

Martin Troakes as Welsh Tavern Barkeep

Peter Guinness as DeSaad (voice)

Sergi Constance as Zeus

Aurore Lauzeral as Artemis

Julian Lewis Jones as Ancient Atlantean King

Ray Porter as Darkseid (voice)

Francis Magee as Ancient King of Men

Hari James as Antiope's Crew

Kiersey Clemons as Iris West

Lucy Briers as Dog Day Care Owner

David Mara as Produce Truck Driver

Wil Coban as Tortured Atlantean Soldier

Stewart Alexander as College Dean

Karen Bryson as Elinore Stone

Christy Meyer as Emergency Room Doctor

C. Amanda Maud as Waitress

Granville Saxton as Homeless Man

Gianpiero Cognoli as Central City Prison Guard

Kobna Holdbrook-Smith as Detective Crispus Allen

Kevin Mathurin as Sketch Witness

Joyce Veheary as Gotham Cop

Taylor James as Atlantean Military Messenger

Hadrian Howard as Atlantean General

Victor Gardener as Atlantean General #2

Bruce Chong as Atlantean General #3

Orion Lee as Star Labs Scientist

Oliver Gatz as Star Labs Scientist

Rachel Blenkiron as Star Labs Scientist

Lynne Anne Rodgers as Star Labs Cleaning Staff

Oliver Powell as Star Labs Cleaning Staff

Kelly Burke as Air Force Security

Keith Simpson as Air Force Security

Omri Rose as Moonsuit Soldier

Harry Lennix as General Calvin Swanwick / Martian Manhunter

Will Austin as MP Guard

William Atkinson as Military Police

Sam Benjamin as Military Police

Shalini Peiris as Bio Hazard Suit Soldier

Carla Gugino as Ship Voice (voice)

Russell Crowe as Jor-El (voice)

Adam Forman as Pickup Truck Driver

Peter Brooke as Defense Department Official

Peter Henderson as Bald Inmate

Bruce Lester-Johnson as Prison Guard

Katia Elizarova as Lex's Guard

Gemma Refoufi as Lex's Guard

Leila Reid as Lex's Guard

Suan-Li Ong as Lex's Guard

Tina Balthazar as Lex's Guard

Penny Lane as Lex's Guard

Jared Leto as The Joker

Stephanie Haymes-Roven as Amazon Cavalry General

Gary A. Hecker as Creature Vocals (voice)

Steve West as MoBo Priest

Laura Waddell as MoBo Priest #2

Kevin Costner as Jonathan Kent (voice) (uncredited)

Swaylee Loughnane as Cop (uncredited)

Robin Wright as Antiope (uncredited)

Billy Crudup as Henry Allen (uncredited)

Zack Snyder as Man in Coffee Shop (uncredited)

Clem So as Armies of Men Mongolian Warlord (uncredited)

Greg Draven as Viking (uncredited)

Joe Manganiello as Slade Wilson / Deathstroke (uncredited)

Nick McKinless as Ares Body Double (uncredited)

Craig Douglas as Policeman London (Uncredited)

Tineke Ann Robson as Amazonian Warrior (uncredited)