Superman should be Henry Cavill obviously. But Batman is tricky. Do they reboot? Will they Continue with John Blake or Bale? Personally, what I'd like to see happen is a return of Christian Bale. The film would definitely have to explain why his stance has changed since the events of The Dark Knight Rises, and I'd also like to see whats going on with John Blake in Gotham. However, I think that would be highly unlikely to happen. The rumor is that JGL will be Batman in Justice League. I personally don't like this idea. I feel that the only Batman that should be in Justice League is Bruce Wayne. That is the character that I have grown to love since I was a child, not John Blake. I didn't love his character enough in The Dark Knight Rises for me to want to see more of him. The other option is rebooting. Last years Amazing Spider Man didnt sit as well with audiences as Sony expected it to, and I'd expect the same to happen to a rebooted Batman. Unless they get the perfect actor. Some names I like are Ryan Gosling, Karl Urban, John Hamm, Jake Gyllenhaal wouldnt be horrible, & Michael Fassbender would be great. Jack Huston is an interesting idea to think about too. As far as Wonder Woman goes, I don't like the idea of Wonder Woman having a British or American accent, I think her voice should sound Greek or just foreign enough sounding to not know where she's from. For this role, my top choice would be Olga Kurylenko. She's gorgeous, but looks convincing as a warrior (see Centurion) If they must use a woman with an American or British accent I suggest Emily Blunt, and if the part doesn't require great skill Gina Carano really looks the part, she would preferably need to get a lot better at acting before playing Wonder Woman though, her performance will decide whether she ever gets a solo film, so I don't know if WB should count on Gina's skill enough for that pressure. For the role of Hal Jordan, once again things get tricky. Do they reboot or keep Ryan Reynolds. For the sake of a shared universe, I say keep Ryan Reynolds. I didn't like the movie but it brings a little bit more credibility to the Justice League movie and I just like the idea of a shared universe. If that doesnt happen I suggest John Stewart be in the film, Idris Elba would be solid, Anthony Mackie also would've been great, too bad they're both snagged by Marvel. But if they recast Hal, I've seen Jensen Ackles suggested, I don't like this idea, this guy needs to stay on TV for sure. Chris Pine would be nice, but that's not too creative seeing how similar Kirk and Hal are. I dig the idea of Bradley Cooper as Hal Jordan though. For Flash, I've seen Ryan Gosling and Aaron Paul suggested, who would be great for a serious Barry but I'd like the character to be lighthearted, and Ryan Gosling and Aaron Paul are at their best when they're playing dark characters (Drive and Breaking Bad). For this reason I suggest Justin Timberlake, John Krasinski, and maybe James Franco. Garret Hedlund has yet to impress me but I'm open to the idea. If Aquaman is to be in the film Joel Edgerton would definitely be my first choice, Leonardo DiCaprio wouldn't suck, even though he's such a big name. It could lend credibility to the character, and his production company Appian Way was going to produce an Aquaman film that is stuck in development hell. Martian Manhunter should be played by none other than Doug Jones, basically the master of all roles that require lots of make up. His various parts in Guillermo Del Toro's Pan's Labyrinth and Hellboy convince me that Doug Jones would make a fantastic Martian Manhunter. Lance Reddick looks a lot like the character already and would be another good choice. If Ryan Reynolds returns then Angela Basset as Amanda Waller should also return. And if she returns, so should Richard Shiff as Professor Hamilton from Superman. This could set up a Checkmate storyline which would be very interesting to see on film. Vandal Savage and Maxwell Lord are two villain choices that I think would be great for an Earthly threat based film. Javier Bardem as Vandal Savage is inspired, great choice. I like the idea of Sean Penn as Maxwell Lord. Or even Mark Wahlberg? They could play up the good guy gone bad aspect with Mark Wahlberg. I think Dennis Haysbert could be fantastic as the voice of Darkseid if he is to be the villain in the film.