Henry Cavil as Superman aka Clark Kent
Ben Affleck as Batman aka Bruce Wayne
Gal Gadot as Wonder Woman aka Diana Prince
Grant Gustin as The Flash aka Barry Allen
Michael B. Jordan as Cyborg aka Victor Stone
Nathan Fillion as Hal Jordan
Stephan Amell as Green Arrow
Kellan Lutz as Captain Marvel (Post "Shazam" Form)
Katie Cassidy as Black Canary aka "Dinah" Laurel Lance
Josh Holloway as Aquaman
Lance Reddick as Martian Manhunter
Dwayne Johnson as John Stewart
Chad Michael Murray as Ray Palmer
Dave Franco as Ronnie Raymond
Wes Bentley as Metamorpho
Bradley Cooper as Booster Gold
James Roday as Blue Beetle II aka Ted Kord
Drew Roy as Kyle Rayner
Colton Haynes as Speedy I/Arsenal/Red Arrow
Robbie Amell as Superboy aka Connor Kent
Ashley Benson as Starfire
Nina Dobrev as Wonder Girl aka Cassandra Sandmark
Willa Holland as Speedy II aka Thea.."Mia"...Dearden Queen
Matthew Night as Beast Boy aka Gar Logan
Jason Dolly as Kid Flash aka Bart Allen
Carlos Valdes as Vibe
Elizabeth Gillies as Raven
Colin Ford as CM3
Avan Jogia as Jaime Reyes aka Blue Beetle III
Claire Holt as Supergirl aka Kara Zor El
Mackenzie Rosman as Miss Martian
Logan Henderson as Tempest aka Garth
Kelly Berglund as Mary Marvel
Steven R. McQueen as Nightwing aka Dick Grayson
David Henrie as Red Hood aka Jason Todd
Logan Lerman as Red Robin aka Tim Drake
Zachary Gordon as Robin aka Damian Wayne
Emma Watson as Batgirl aka Barbara Gordon
Bryan Cranston as Jim Gordon
AJ Michalka as Spoiler aka Stephanie Brown
Jeremy Irons as Alfred (ala Batman Earth 1)
Candice Patton as Iris West
Ryan Gosling as Steve Trevor
Matthew Gray Gubler as The Riddler
Manu Bennet as Deathstroke
Benedict Cumberbatch as The Joker
Jesse Eisenberg as Lex Luthor
Summer Glau as Isabel Rochev
Sean Maher as Shrapnel
Sam Witwer as Black Adam
Robert Knepper as The Clock King
Michael Shannon as General Zod
Cynthia Addai Robinson as Amanda Waller
Michael Rowe as Deadshot
James Callis as The Dodger
Andrew Dunbar as Firefly
Michael Jai White as Bronze Tiger
Kelly Hu as China White
John Hamm as Wrath
Jason Momoa as Doomsday