John Goodman

Huey P. Long, Jr.

Matt Craven

Seymour Weiss

Anne Heche

Aileen Dumont

Ann Dowd

Rose Long

Bob Gunton

Franklin D. Roosevelt

Bill Cobbs

Pullman Porter

Hoyt Axton

Huey P. Long, Sr.

Kirk Baltz

Frank Costello

Richard Bradford

Judge Benjamin Pavy

Jimmie Ray Weeks

Allen Henderson

Joe Alaskey

Kingfish (voice)

Joe Chrest

Carl Weiss

Danny Kamin

Cecil Christopher

Jerry Leggio

Farley's Aide

John McConnell

'Battlin' Bozman

Joanne Pankow

Waitress

Jeff Perry

Earl Long

Bill Raymond

Gov. O.K. Allen

Joe Warfield

Delesdernier

Greg Baber

Tom Frady

Keith Bird

Huey's Crony / Companion

Walter Breaux

Warren

Ed Bruce

Gov. J.Y. Sanders

Mary Coulson

Marguerita Hass

Patrick Cullen

Antoine Daspit

Bertrum Dykes

Farmer

Victoria Edwards

Chanteuse

Stocker Fontelieu

Impeachment senator #1

Katie Planche Friedrichs

Mary Lou

Chappy Hardy

Frank Mendels

Jack Hazard

Man at parade

Bill Jessup

Impeachment senator #3

Thomas Keller

James

Charles McLawhorn

'Battlin' Bozman

Mike McNally

Man in bathroom

Jacky Lee Morgan

Huey's Bodyguard

Rita Smith

Farmer's wife

Mary Madeleine Thibeaux

Nun

Graham Timbes

Impeachment senator #2

Sam Wells

Sen. Byrd

James Winder

Luther

Cy Fahrenholtz

Photographer (uncredited)

Adolf Hitler

Self (archive footage) (uncredited)

Huey P. Long

Self (funeral) (archive footage) (uncredited)

Benito Mussolini

Self (funeral) (archive footage) (uncredited)

Sara Pepitone

Senate secretary (uncredited)

Brent Spiner

(uncredited)