David Ayer Director Keanu Reeves Tom Ludlow Actor Forest Whitaker Capt. Jack Wander Actor Hugh Laurie Capt. James Biggs Actor Chris Evans Diskant Actor Cedric the Entertainer Scribbles Actor Jay Mohr Sgt. Mike Clady Actor Terry Crews Det. Washington Actor Naomie Harris Linda Washington Actor Common Coates Actor The Game Grill Actor Martha Higareda Grace Garcia Actor John Corbett Det. Dante Demille Actor Amaury Nolasco Det. Cosmo Santos Actor Cle Sloan Fremont Actor Noel Gugliemi Quicks Actor Michael Monks Pathologist Actor Clifton Powell Sergeant Green Actor Kurt Wimmer Screenwriter Jamie Moss Screenwriter James Ellroy Screenwriter Lucas Foster Producer Alexandra Milchan Producer Erwin Stoff Producer Arnon Milchan Executive Producer Michele Weisler Executive Producer Gabriel Beristain Cinematographer Graeme Revell Original Music Jeffrey Ford Film Editing Alec Hammond Production Design Hilton Rosemarin Set Decoration