Confirmations are said to be coming very soon from Warner Brothers, but this is what's circulating in the movie community;
Superman/Clark Kent: Scott Porter
Batman/Bruce Wayne: Armie Hammer
Wonder Woman/Diana: Megan Gale
Green Lantern/John Stewart: Common
Flash/Wally West: Adam Brody
Martian Manhunter: ??
Aquaman/Arthur Curry: ??
Iris West Allen: Zoe Kazan
Talia Al Ghul (Ra's daughter): Teresa Palmer
Iris Allen is the wife of Flash #2 Barry Allen, the aunt & muse of Flash #3 Wally West, and mother of Flash #4 Bart Allen. As long-time followers know Flash #1 was Jay Garrick.
Talia Al Ghul, daughter of Ra's Al Ghul, is a canon character perhaps unknown to those who don't follow the comics. Playing both sides of the fence she has been a love interest of Batmans as well as an ally and at times an adversary. In later stories she is responsible for the downfall of Lex Luthor and the selling of LexCorp's assets to the Wayne Foundation.
Superman/Clark Kent: Scott Porter
Batman/Bruce Wayne: Armie Hammer
Wonder Woman/Diana: Megan Gale
Green Lantern/John Stewart: Common
Flash/Wally West: Adam Brody
Martian Manhunter: ??
Aquaman/Arthur Curry: ??
Iris West Allen: Zoe Kazan
Talia Al Ghul (Ra's daughter): Teresa Palmer
Iris Allen is the wife of Flash #2 Barry Allen, the aunt & muse of Flash #3 Wally West, and mother of Flash #4 Bart Allen. As long-time followers know Flash #1 was Jay Garrick.
Talia Al Ghul, daughter of Ra's Al Ghul, is a canon character perhaps unknown to those who don't follow the comics. Playing both sides of the fence she has been a love interest of Batmans as well as an ally and at times an adversary. In later stories she is responsible for the downfall of Lex Luthor and the selling of LexCorp's assets to the Wayne Foundation.