Kevin Costner
as Eliot Ness

Sean Connery
as Jim Malone

Charles Martin Smith
as Oscar Wallace

Andy García
as George Stone

Robert De Niro
as Al Capone

Richard Bradford
as Mike

Jack Kehoe
as Payne

Brad Sullivan
as George

Billy Drago
as Nitti

Patricia Clarkson
as Ness' Wife

Vito D'Ambrosio
as Bowtie Driver

Steven Goldstein
as Scoop

Peter Aylward
as Lt. Anderson

Don Harvey
as Preseuski

Robert Swan
as Mountie Captain

John J. Walsh
as Bartender

Del Close
as Alderman

Colleen Bade
as Mrs. Blackmer

Greg Noonan
as Rangemaster

Sean Grennan
as Cop Cousin

Larry Viverito Sr.
as Italian Waiter

Kevin Michael Doyle
as Williamson

Mike Bacarella
as Overcoat Hood

Michael P. Byrne
as Ness' Clerk

Kaitlin Montgomery
as Ness' Daughter

Aditra Kohl
as Blackmer Girl

Charles Keller Watson
as Reporter

Larry Brandenburg
as Reporter

Chelcie Ross
as Reporter

Tim Gamble
as Reporter

Pat Billingsley
as Bailif

Sam Smiley
as Bailiff

John Bracci
as Fat Man

Jennifer Anglin
as Woman in Elevator

Eddie Minasian
as Butler

Anthony Mockus Sr.
as Judge

Will Zahrn
as Defense Attorney

Louie Lanciloti
as Barber

Vince Viverito
as Bodyguard

Valentino Cimo
as Bodyguard

Joe Greco
as Bodyguard

Clem Caserta
as Bodyguard

Bob Martana
as Bodyguard

Joseph Scianablo
as Bodyguard

George S. Spataro
as Bodyguard

Melody Rae
as Union Station Woman

Robert Miranda
as Gunned Head

James Guthrie
as Pagliacci

Basil Reale
as Hotel Clerk

John Barrowman
as Street Person (uncredited)

Jimmy Borto
as Court Reporter (uncredited)

Stephen Burrows
as Hoodlum (uncredited)

Ernest Capponi
as Gangster at Round Table (uncredited)

Justin De Rosa
as Capone's Hitman (uncredited)

Eddy Donno
as Capone's Hitman (uncredited)

Jack Fitzstephens
as Train Announcer (uncredited)

Collin Hymes
as Baby in Carriage (uncredited)

Clifton James
as District Attorney (uncredited)

Matt Johnston
as Union Station Bodyguard (uncredited)

Robert Minkoff
as Man (uncredited)

William Rossman
as Gangster (uncredited)