THE CASTING:
Tyler Hoechlin as Clark Kent/Superman
David Mazouz & Victor Webster as Batman/Bruce Wayne
Leonor Varela as Diana Prince/Wonder Woman
David Harewood as Dr. Hank Henshaw/J'onn J'onzz/The Martian ManHunter
(replacing Cyborg)
Grant Gustin as Barry Allen/The Flash
Jamie Dornan as Hal Jordan/Green Lantern
NOTABLE CAMEOS:
Cynthia Addai-Robinson as Amanda Waller
Melissa Benoist as Kara Danvers/Supergirl
Chyler Leigh as Alex Danvers
Jeremy Jordan as Winn Schott
Mechad Brooks as Jimmy Olsen
Glenn Morshower as General Sam Lane
Michael Rosenbaum as Lex Luthor
David Tennant as the Joker
Cassidy Alexa & Tara Strong as Dr. Harleen Quinzel/Harley Quinn
Nicholas D' Agosto & Tommy Lee Jones as Harvey Dent/Two-Face
Cole Vallis & Michael C. Hall as Tommy Elliott/Hush
Chris Chalk & Ron Glass as Lucius Fox
Sean Pertwee & Ian Abercombrie as Alfred Pennyword
Ben McKenzie & William H. Macy as Commissioner James Gordon
Robin Lord Taylor & David Suchett as Oswald Chesterfield Cobblepot/The Penguin
Stephen Amell as Oliver Queen/Green Arrow
David Ramsey as John Diggle
Emily Bett Rickards as Felicity Smoak
Carlos Valdes as Cisco Ramon
Danielle Panabaker as Dr. Caitlin Snow
Arthur Darvill as Rip Hunter
Brandon Routh as Ray Palmer/The Atom
Ciara Renee as Kendra Sounders/Hawkgirl
Falk Hentschel as Carter Hall/Hawkman
Blake Lively as Carol Ferris
Taika Waititi as Tom Kalmaku