Jack Nicholson as President Dale / Art Land

Glenn Close as Marsha Dale

Annette Bening as Barbara Land

Pierce Brosnan as Donald Kessler

Danny DeVito as Rude Gambler

Martin Short as Jerry Ross

Sarah Jessica Parker as Nathalie Lake

Michael J. Fox as Jason Stone

Rod Steiger as General Decker

Tom Jones as Tom Jones

Lukas Haas as Richie Norris

Natalie Portman as Taffy Dale

Jim Brown as Byron Williams

Lisa Marie as Martian Girl

Sylvia Sidney as Grandma Norris

Paul Winfield as General Casey

Pam Grier as Louise Williams

Jack Black as Billy Glenn Norris

Janice Rivera as Cindy

Ray J as Cedric

Brandon Hammond as Neville

Joe Don Baker as Glenn Norris

O-Lan Jones as Sue Ann Norris

Christina Applegate as Sharona

Brian Haley as Mitch

Jerzy Skolimowski as Dr. Zeigler

Timi Prulhiere as Tour Guide

Barbet Schroeder as French President

Chi Hoang Cai as Mr. Lee

Tommy Bush as Hillbilly

Joseph Maher as Decorator

Gloria M. Malgarini as Nun #1

Betty Bunch as Nun #2

Gloria Hoffmann as Nun #3

Willie Garson as Corporate Guy

John Roselius as GNN Boss

Michael Reilly Burke as GNN Reporter #1

Valerie Wildman as GNN Reporter #2

Richard Irving as GNN Reporter #3

Jonathan Emerson as Newscaster

Tamara 'Gingir' Curry as Hooker #1

Rebecca Broussard as Hooker #2

Vinny Argiro as Casino Manager

Steve Valentine as TV Director

Coco Leigh as Female Journalist

Jeffrey King as NASA Tech

Enrique Castillo as Hispanic Colonel

Don LaMoth as Colonel #2

C. Wayne Owens as Stranger #1

Joseph Moynihan as Stranger #2

Roger Peterson as Colonel

John Finnegan as Speaker of the House

Ed Lambert as Morose Old Guy

John Gray as Incredibly Old Guy

Gregg Daniel as Lab Technician

J. Kenneth Campbell as Doctor #1

Jeanne Mori as Doctor #2

Rance Howard as Texan Investor

Richard Assad as Saudi Investor

Velletta Carlson as Elderly Woman Playing Slots

Kevin Mangan as Trailer Lover

Rebeca Silva as Hispanic Woman

Josh Philip Weinstein as Hippie

Julian Barnes as White House Waiter

Ken Thomas as White House Photographer

Darelle Porter Holden as Tom Jones Backup Singer

Christi Black as Tom Jones Backup Singer

Sharon Hendrix as Tom Jones Backup Singer

Frank Welker as Various Martians (voice)

Heidi Miller as Extra (uncredited)

JoAnn Bush as Cleopatra Cocktail Waitress (uncredited)