Gangster Squad - The App: Cast, details, spoilers, reviews and more. Follow us, behind-the-scenes pictures exclusive video, twitter reactions and more. Los Angeles, 1949. Ruthless, Brooklyn-born mob king Mickey Cohen (Sean Penn) runs the show in this town, reaping the ill-gotten gains from the drugs, the guns the prostitutes and-if he has his way-every wire bet placed west of Chicago. And he does it all with the protection of not only his own paid goons, but also the police and the politicians who are under his control. It's enough to intimidate even the bravest, street-hardened cop...except, perhaps, for the small, secret crew of LAPD outsiders led by Sgt. John O'Mara (Josh Brolin) and Jerry Wooters (Ryan Gosling), who come together to try to tear Cohen's world apart. -- (C) Warner BrosThis app will add a new icon on your home screen that links to a Games, Apps and Android tricks mobile web page. If you do not want to use this awesome page, you can either ignore it or delete it. If you do use it, we get help promoting this app and make a few cents, it will also help us keep developing more great apps.