Suicide Squad star Jared Leto put a lot of effort into playing the Joker. In preparation for the role, the actor met with "psychopaths and people who had committed horrendous crimes."

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Maybe that's where Leto picked up the used condoms and anal beads Leto told Entertainment Weekly when he takes on a role like the Joker, he becomes "part detective, part writer.""I knew I had to be committed as much as possible," Leto said. "I had to be committed beyond belief. And I did what I needed to do deliver the best I possibly could."While Leto did what he had to in order to develop the Joker as a character, director David Ayer had "some very specific ideas" for the character's look. The tattoos, specifically, were Ayer's idea—and part of the Joker being redefined for a new generation."He does feel like a modern-day gangster, because… he’s always been a gangster,” Ayer said. Harley Quinn actress Margot Robbie recently opened up about her dysfunctional Suicide Squad character, saying she has an "incredibly dysfunctional relationship" with Leto's Joker.Warner Bros.' anti-hero flick hits theaters on August 5. Suicide Squad's latest trailer , which features all new footage, debuted in early April.

Nicole is a freelance writer for IGN. You can follow her on Twitter