Jared Leto, Will Smith, Tom Hardy, Margot Robbie, Jai Courtneyand Cara Delevingne will make up the all-star cast of Warner Bros.' supervillain tentpole 'Suicide Squad'.
Based on the DC comicbook, the story centres on the team of supervillains who are given a chance at redemption by the government.
The catch: Their mission will probably kill them all.
The actors' names had long been talked about for the high-profile movie, which opens 5 August 2016, but their deals and characters had not been finalised.
Here's the official cast/character list:
• Jared Leto - The Joker
• Will Smith - Deadshot
• Tom Hardy - Rick Flag
• Margot Robbie - Harley Quinn
• Jai Courtney - Boomerang
• Cara Delevingne - Enchantress
'Suicide Squad', directed by David Ayer and produced by Charles Roven and Richard Suckle, will begin shooting April 2015 in Toronto.
According to insiders, Jesse Eisenberg is also in talks to play Lex Luthor in the film, a role he will first play in 'Batman v Superman: Dawn of Justice', though the status of his deal is unknown.
"The Warner Bros roots are deep on this one," Warner Bros president Greg Silverman said in a statement.
"We look forward to seeing this terrific ensemble, under David Ayer's amazing guidance, give new meaning to what it means to be a villain and what it means to be a hero."
Warners has long viewed this project as the 'Ocean's Eleven' of comicbook movies and has been looking to load up the roster with top-tier talent.
Warners still has the role of Amanda Waller, the character who oversees the team (similar to Nick Fury in the Marvel universe), to cast before the film goes into production. The studio's shortlist of actresses being eyed for the role includes Viola Davis, Octavia Spencer and Oprah Winfrey, whom sources say would be WB's first choice for the part.
Leto is making his first picture since winning the Oscar for 'Dallas Buyers Club'.
Smith can be seen next in Warner Bros' 'Focus' which also stars Robbie.
Hardy is now filming 'The Revenant' opposite Leonardo DiCaprio, and it bows next Christmas.
Delevingne, an English model-turned-actress, can next be seen in Warner Bros' 'Pan'.
Courtney appears in the upcoming 'Terminator' reboot as well as Universal's 'Unbroken' and Lionsgate's 'Insurgent'.