
The film reveals the hidden events that culminated in one of America’s bloodiest days: Chicago, February 14 1929. Al Capone consolidates power as the city’s crime boss. In a north‑side garage, his men—disguised as police—ambush and machine‑gun the key members of Bugs Moran’s rival gang. The documentary follows the buildup, the massacre itself, and the lasting impact on the lives it destroyed.
Does The St. Valentine’s Day Massacre have end credit scenes?
No!
The St. Valentine’s Day Massacre does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The St. Valentine’s Day Massacre, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Bruce Dern
Johnny May

Jack Nicholson
Gino, Hit Man (uncredited)

Dick Miller
Gangster Dressed as a Cop (uncredited)

Jason Robards
Al Capone

George Segal
Peter Gusenberg

Ralph Meeker
George Clarence 'Bugs' Moran

Jan Merlin
Willie Marks

John Agar
Dion O'Bannion

Roger Corman

Celia Lovsky
Josephine Schwimmer

Joan Shawlee
Edna, Frank's Girlfriend (uncredited)

Tom Reese
Ted Newberry

Paul Frees
Narrator (voice) (uncredited)

Joseph Campanella
Albert Wienshank

Alex Rocco
Diamond

Richard Bakalyan
John Scalise

Ron Gans
Chapman (uncredited)

Corinna Tsopei
Gangster Girl (uncredited)

Harold J. Stone
Frank Nitti

Leo Gordon
Heitler

Alexander D'Arcy
Joe Aiello

Daniel Ades
Angelo Molina (uncredited)

Buck Taylor
Poolside Interviewer 2 (uncredited)

Mary Grace Canfield
Mrs. Doody, Landlady (uncredited)

Tom Signorelli
Bobo Borotto

Clint Ritchie
Jack McGurn

Jonathan Haze
Gangster Dressed as a Cop (uncredited)

Betsy Jones-Moreland
Poolside Interviewer (uncredited)

James Gonzalez
Party Guest (uncredited)

Charles Dierkop
Salvanti

Joe Turkel
Jake 'Greasy Thumb' Guzik

Reed Hadley
Hymie Weiss

Frank Silvera
Nick Sorello

Vincent Barbi
Witness (uncredited)

Leoda Richards
Party Guest (uncredited)

Bernard Sell
Hood (uncredited)

Jean Hale
Myrtle

Patrick Whyte
Judge at Party (uncredited)

Paul Richards
Charles Fischetti

Mickey Deems
Reinhold Schwimmer

Jack Del Rio
Capone Board Member (uncredited)

Jeffrey Sayre
Party Guest (uncredited)

Kurt Kreuger
James Clark

Bud Cokes
Hood (uncredited)

George DeNormand
Clerk (uncredited)

Barboura Morris
Jeanette Landsman (uncredited)

Milton Frome
Adam Heyer

José Portugal
Mourner (uncredited)

Judith Woodbury
Party Guest (uncredited)

William Meader
Tenant (uncredited)

Ron Nyman
Hood (uncredited)

Sammy Shack
Vagrant (uncredited)

Russ Conway
Interrogator (uncredited)

Mushy Callahan
Hood (uncredited)

Monty O'Grady
Party Guest (uncredited)

Ernesto Molinari
Capone Board Member (uncredited)

Richard Krisher
Desk Clerk (uncredited)

Yutta D'Arcy
Gangster Girl (uncredited)

Albert Cavens
Reporter (uncredited)

Jerry Rush
Party Guest (uncredited)

Tony Dante
Commuter (uncredited)

Phil Harron
Capone Board Member (uncredited)

Mary Michael
Gangster Girl (uncredited)

David Canary
Frank Gusenberg

Rico Cattani
Albert Anselmi

Lisa Jak
Gangster Girl (uncredited)

Laura Barry
Girl (uncredited)

Bob Brandon
Capone Board Member (uncredited)

Michele Guarini
Patsy Lolordo (uncredited)
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Who leads the Southside Gang in the film?
Read the complete plot summary of The St. Valentine’s Day Massacre, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
In the Roaring Twenties, Chicago becomes a battlefield of organized crime as two mighty gangs clash for control. The Southside Gang, led by the infamous Al Capone, pushes back against George “Bugs” Moran and his North Side outfit, both aiming to dominate bootlegging, gambling, and the protection racket that fuels their power. Moran’s inner circle includes Peter Gusenberg and the ruthless [Frank Gusenberg], who pressure speakeasy owners into doing business with them. The dynamics of loyalty and money put strain on Moran’s camp, especially as his moll Myrtle becomes entangled in the web of extravagant spending that sparks tension within Peter’s ranks.
The feud deepens with a deadly history of revenge. Capone remembers Hymie Weiss’s bid to kill him, a memory that unfolds in flashbacks of the September 1926 lunchtime ambush at Cicero and the earlier elimination of North Side leader Dean O’Banion in 1924, followed by Weiss’s own demise in 1926. These past strikes feed the present cunning as Capone’s men recalibrate their strategy. Moran, in turn, schemes with low-level mafiosi like Joe Aiello to remove Patsy Lolordo, a close Capone ally who represents Sicilian interests in Chicago, hoping to replace him with a more Moran-friendly envoy. Patsy Lolordo is targeted, his bodyguards compromised, and he is murdered in his apartment, sending a sharp message through both gangs. Capone responds by personally hunting down Aiello, who is killed while fleeing the state.
The playing field shifts as McGurn’s plan edges toward action. With Moran’s men growing bolder, Capone retreats to his winter home in Miami to maintain an alibi and keep the gang war from igniting into outright chaos. On a February morning in 1929, Capone’s outfit stages a brazen assault: four henchmen dressed as police officers raid Moran’s northside garage, while two more storm in armed with Tommy guns. The hit wipes out five of Moran’s men, using shotguns to erase any survivors, and two bystanders—Johnny May and Reinhard Schwimmer—are killed in the crossfire. Moran, not present at the garage, slips away to a diner, sensing the danger too late for a direct confrontation.
“Only Capone kills like that,” Moran remarks in a hospital press conference, a jolt of public accusation that echoes the chaos unfolding back in Chicago as Capone, also in the press, dismisses Moran’s claims of wit and strategy.
The fallout echoes beyond the garage. Capone’s men move to quell the betrayal within their ranks, targeting John Scalise and Albert Anselmi for their alleged plans to defy him. Moran is driven out of Chicago in the years that follow, eventually dying of lung cancer while in Leavenworth, his legend sheltering behind a wall of silence. Capone, after a prison stint on Alcatraz, passes away from complications of syphilis. In the end, no one is ever brought to formal justice for the murders that sparked the war; the killers simply fade away or vanish, leaving a city with a memory of a night when whole blocks trembled under the weight of gang ambition.
A sprawling, violent tableau of loyalty, betrayal, and power, the story threads together a web of personal feuds, political entanglements, and brutal hitwork that reshaped Chicago’s underworld. From the initial spark of rivalries to the cold calculus of assassinations and counter-moves, the era’s brutality is laid bare, with scenes that linger in the mind—whether through the memory of the Hawthorne Hotel confrontation in Capone’s past, the chilling precision of the garage assault, or the quiet tragedy of Moran’s final years behind bars. The film never-shy from harsh consequences, it keeps the focus tight on the characters who drove the blood-soaked feud and the myths that grew around their ruthless, relentless pursuit of absolute control.

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