The St. Valentine's Day Massacre

Jason Robards

Al Capone

George Segal

Peter Gusenberg

Ralph Meeker

George Clarence 'Bugs' Moran

Jean Hale

Myrtle

Clint Ritchie

Jack McGurn

Frank Silvera

Nick Sorello

Joseph Campanella

Albert Wienshank

Richard Bakalyan

John Scalise

David Canary

Frank Gusenberg

Bruce Dern

Johnny May

Harold J. Stone

Frank Nitti

Kurt Kreuger

James Clark

Paul Richards

Charles Fischetti

Joe Turkel

Jake 'Greasy Thumb' Guzik

Milton Frome

Adam Heyer

Mickey Deems

Reinhold Schwimmer

John Agar

Dion O'Bannion

Celia Lovsky

Josephine Schwimmer

Tom Reese

Ted Newberry

Jan Merlin

Willie Marks

Alexander D'Arcy

Joe Aiello

Reed Hadley

Hymie Weiss

Gus Trikonis

Rio

Charles Dierkop

Salvanti

Tom Signorelli

Bobo Borotto

Rico Cattani

Albert Anselmi

Alex Rocco

Diamond

Leo Gordon

Heitler

Daniel Ades

Angelo Molina (uncredited)

Vincent Barbi

Witness (uncredited)

Laura Barry

Girl (uncredited)

Bob Brandon

Capone Board Member (uncredited)

Mushy Callahan

Hood (uncredited)

Mary Grace Canfield

Mrs. Doody, Landlady (uncredited)

Albert Cavens

Reporter (uncredited)

Bud Cokes

Hood (uncredited)

Russ Conway

Interrogator (uncredited)

Yutta D'Arcy

Gangster Girl (uncredited)

Tony Dante

Commuter (uncredited)

Jack Del Rio

Capone Board Member (uncredited)