Story
Los Angeles, 1949. Mickey Cohen has built a criminal empire that reaches from the city’s streets into its police force and political circles. Drugs, weapons, prostitution and illegal betting provide the money, while paid enforcers protect the operation from anyone who might challenge it.
Sergeant John O’Mara refuses to accept a city ruled by fear and corruption. With the approval of his superiors, he assembles a discreet group of LAPD outsiders, each chosen for the skills and resolve needed to strike at Cohen’s organization. Jerry Wooters joins the effort, bringing his own methods and a more cynical outlook on the city’s dangerous underworld. As the squad closes in, every move carries the risk of exposure, retaliation and betrayal.
Overview
Gangster Squad combines action, crime, drama and thriller elements in a stylized portrait of postwar Los Angeles. The story follows a covert police operation working beyond official channels, where loyalty matters as much as courage and the boundary between justice and revenge grows increasingly difficult to hold.
Its setting gives the film a tense period atmosphere of nightclubs, corrupt institutions and streets controlled by organized crime. The central conflict pits a small team of determined officers against a powerful mob boss whose influence extends far beyond his own men. The pace moves between investigative planning, sudden violence and uneasy personal alliances, keeping the focus on the cost of confronting a criminal empire from within a compromised city.
Cast and Characters
- Josh Brolin portrays Sgt. John O’Mara, the principled officer who organizes the secret police unit.
- Ryan Gosling plays Jerry Wooters, an LAPD officer drawn into the dangerous campaign against Cohen.
- Sean Penn appears as Mickey Cohen, the ruthless mob king whose influence dominates Los Angeles.
- Nick Nolte plays Chief Bill Parker, a senior figure within the police department.
- Emma Stone plays Grace Faraday, whose connections add personal tension to the story.
Cast & Crew

Steve Jablonsky
Composer

Caleb Deschanel
Cinematographer

Josh Brolin
Actor

Maher Ahmed
Production Designer

Michael Tadross
Producer

Alan Baumgarten
Film Editor

Rory Koslow
Producer

Austin Gorg
Production Designer

Ruben Fleischer
Producer

Will Beall
Screenwriter

Bruce Berman
Producer

Dan Lin
Producer

Ryan Gosling
Actor

Sean Penn
Actor

Nick Nolte
Actor

Emma Stone
Actress

Anthony Mackie
Actor

Giovanni Ribisi
Actor

Robert Patrick
Actor

Michael Pena
Actor

Mireille Enos
Actress

Troy Garity
Actor

Holt McCallany
Actor

Sullivan Stapleton
Actor

James carpinello
Actor

James Hebert
Actor

Ivan jones
Actor

Jack Conley
Actor

Jack McGee
Actor

Jon Polito
Actor

Austin Abrams
Actor

Michael Bacall
Actor

Lance Barber
Actor

Ambyr Childers
Actress

Lucy Davenport
Actress

Don Harvey
Actor

Anne Leighton
Actress

Derek Mears
Actor

Brandon Molale
Actor

Michael Papajohn
Actor

Louise Griffiths
Actress

Frank Grillo
Actor

Katrina Munday
Actress
































