John Goodman as Huey P. Long, Jr.

Matt Craven as Seymour Weiss

Anne Heche as Aileen Dumont

Ann Dowd as Rose Long

Bob Gunton as Franklin D. Roosevelt

Bill Cobbs as Pullman Porter

Hoyt Axton as Huey P. Long, Sr.

Kirk Baltz as Frank Costello

Richard Bradford as Judge Benjamin Pavy

Jimmie Ray Weeks as Allen Henderson

Joe Alaskey as Kingfish (voice)

Joe Chrest as Carl Weiss

Danny Kamin as Cecil Christopher

Jerry Leggio as Farley's Aide

John McConnell as 'Battlin' Bozman

Joanne Pankow as Waitress

Jeff Perry as Earl Long

Bill Raymond as Gov. O.K. Allen

Joe Warfield as Delesdernier

Greg Baber as Tom Frady

Keith Bird as Huey's Crony / Companion

Walter Breaux as Warren

Ed Bruce as Gov. J.Y. Sanders

Mary Coulson as Marguerita Hass

Patrick Cullen as Antoine Daspit

Bertrum Dykes as Farmer

Victoria Edwards as Chanteuse

Stocker Fontelieu as Impeachment senator #1

Katie Planche Friedrichs as Mary Lou

Chappy Hardy as Frank Mendels

Jack Hazard as Man at parade

Bill Jessup as Impeachment senator #3

Thomas Keller as James

Charles McLawhorn as 'Battlin' Bozman

Mike McNally as Man in bathroom

Jacky Lee Morgan as Huey's Bodyguard

Rita Smith as Farmer's wife

Mary Madeleine Thibeaux as Nun

Graham Timbes as Impeachment senator #2

Sam Wells as Sen. Byrd

James Winder as Luther

Cy Fahrenholtz as Photographer (uncredited)

Adolf Hitler as Self (archive footage) (uncredited)

Huey P. Long as Self (funeral) (archive footage) (uncredited)

Benito Mussolini as Self (funeral) (archive footage) (uncredited)

Sara Pepitone as Senate secretary (uncredited)

Brent Spiner as (uncredited)