According to comicbook.com (who say it according to Variety), we have our official Suicide Squad cast and confirmed. It's very much similar to what we had earlier heard, but, if true, the actual characters are being locked in. It would be safe, though, to wait for Warner Bros to give official confirmation before you assume the following is true.
Will Smith- Deadshot
Akin to the leader and crux of the Suicide Squad, we were all fairly certain Deadshot would appear. It would seem that Floyd Lawton will be being played by Will Smith- a change in colour from the Deadshot people are used to seeing. But with a mask on, what does it matter? Michael Rowe doesn't look much like Lawton on Arrow, and doesn't even have the mustache, but he's very well liked in the role. Smith certainly has the acting chops, so this could be a great choice.
Margot Robbie- Harley Quinn
What must by now be a universally favourite choice, Margot Robbie seems to be locked in to play Harley Quinn as the female lead of the Squad. She has the acting chops, she looks the part, and she should nail the role. That's really all that needs to be said on the Joker's psychotic girlfriend.
Tom Hardy- Rick Flag
One of the original Suicide Squad members, Flag has been often forgotten in recent animation and adaptions of the Suicide Squad. While he's not powered, persay, Flag is a military genius, trained to the peak of not only physical ability, but in weaponry, tactics and combat. Whether this will be grandfather, father or son Rick Flag is yet to be disclosed.
Cara Delevinge- Enchantress
A perhaps lesser known character, the Enchantress brings the supernatural to DC's cinematic universe, from the looks of it. She's had runs with the Suicide Squad in the comics before- that don't always end well. Effectively, she's a powerful sorceress, who often battles it out with the likes of the Justice League Dark- whether or not these will be her powers in the movie are unknown.
Jai Courtney- Captain Boomerang
Also a renowned member of the Suicide Squad, Jai Courtney is rumoured to be Digger Harkness, also known as Captain Boomerang. Adding some more ranged assault to the team, his arsenal shouldn't be underestimated. If you want to see more of him, just tune into the Arrow/Flash crossover today and tomorrow (which, to the best of my knowledge, is the first live action take on the character.)
Jared Leto- The Joker
A popular fancast a while back at the community at Batman-News.com, Jared Leto seems locked in to play the Joker. People will inevitably compare him to Heath Ledger, or Mark Hamill- but, as Mark Twain says, "comparison is the death of joy." Leto approaches his roles with enthusiasm and tries to live in them, just as the style of Ledger does- it seems entirely possible we'll see a Joker very much like the one in the Arkham games.
Why? This team, while not exact, and the rumoured style of the movie, is supposed to be similar to Assault on Arkham. The Joker likely won't be a member of the team- rather, he'll be in the movie to help flesh out Harley, or just as in Assault on Arkham, as the main villain.
Remember, don't take this as the 100% confirmation until Warner Bros actually announces something, but it looks pretty good to me! The likes of Jesse Eisenberg's Lex Luthor is allegedly also still in talks, but there are more team members and other figures to be cast.
EDIT: Apparently Warner Bros has announced this, at least according to Batman-news.com. Comes with the news Amanda Waller is still being chosen, but top contenders are Octavia Spencer, Viola Davis, and (oddly enough) Oprah Winfrey.
Here's the full press release I found on aforementioned Batman-news.
BURBANK, Calif. – An all-star roster of actors has joined Warner Bros. Pictures’ new action adventure “Suicide Squad,” bringing DC Comics’ super villain team to the big screen under the direction of David Ayer (“Fury”). The announcement was made today by Greg Silverman, President, Creative Development and Worldwide Production, Warner Bros. Pictures.
The film will star two-time Oscar nominee Will Smith (“The Pursuit of Happyness,” “Ali,” upcoming “Focus”) as Deadshot; Tom Hardy (“The Dark Knight Rises,” upcoming “Mad Max: Fury Road”) as Rick Flagg; Margot Robbie (“The Wolf of Wall Street,” upcoming “Focus,” the “Tarzan” movie) as Harley Quinn; Oscar winner Jared Leto (“Dallas Buyers Club,” “Alexander”) as the Joker; Jai Courtney (“Divergent,” upcoming “The Water Diviner”) as Boomerang; and Cara Delevingne (“Anna Karenina,” upcoming “Pan”) as Enchantress.
In making the announcement, Silverman said, “The Warner Bros. roots are deep on this one. David Ayer returns to the studio where he wrote ‘Training Day’ and brings his incredible ability to craft multidimensional villains to this iconic DC property with a cast of longtime Warner collaborators Will Smith and Tom Hardy, and other new and returning favorites: Margot, Jared, Jai and Cara. We look forward to seeing this terrific ensemble, under Ayer’s amazing guidance, give new meaning to what it means to be a villain and what it means to be a hero.”
Ayer is also writing the script for “Suicide Squad,” which is being produced by Charles Roven (“The Dark Knight” trilogy, upcoming “Batman v Superman: Dawn of Justice”) and Richard Suckle (“American Hustle”). Zack Snyder, Deborah Snyder, Colin Wilson and Geoff Johns are serving as executive producers.
The film is slated for release on August 5, 2016.
So what does this mean?
Well, if you're a DC fan, it means in 2016 alone you'll see Batman, Superman, Wonder Woman, Deadshot, Lex Luthor, The Joker, Harley Quinn, Amanda Waller and more.