Greg Kinnear
as Richard Hoover

Toni Collette
as Sheryl Hoover

Steve Carell
as Frank Ginsberg

Paul Dano
as Dwayne Hoover

Abigail Breslin
as Olive Hoover

Alan Arkin
as Edwin Hoover

Bryan Cranston
as Stan Grossman

Beth Grant
as Nancy Jenkins

Wallace Langham
as Kirby

Matt Winston
as Pageant MC

Julio Oscar Mechoso
as Mechanic

Marc Turtletaub
as Doctor #1

Jill Talley
as Cindy

Brenda Canela
as Diner Waitress

Chuck Loring
as Convience Store Proprietor

Justin Shilton
as Josh

Gordon Thomson
as Larry Sugarman

Steven Christopher Parker
as Teen Boy #1

John Walcutt
as Doctor #2

Paula Newsome
as Linda

Dean Norris
as State Trooper McCleary

Lauren Shiohama
as Miss California

Mary Lynn Rajskub
as Pageant Assistant Pam

Jerry Giles
as Funeral Home Worker

Geoff Meed
as Biker Dad

Joan Scheckel
as Judge

Mel Rodriguez
as Officer Martinez

Casandra Ashe
as Girl in Hallway

Alexandria Alaman
as Pageant Contestant

Alissa Anderegg
as Pageant Contestant

Brittany Baird
as Pageant Contestant

Cambria Baird
as Pageant Contestant

Brenae Bandy
as Pageant Contestant

Kristen Holaas
as Pageant Contestant

Maliah Hudson
as Pageant Contestant

Destry Jacobs
as Pageant Contestant

Lindsey Jordan
as Pageant Contestant

Shane Murphy
as Pageant Contestant

Annabelle Roberts
as Pageant Contestant

Sydni Stevenson-Love
as Pageant Contestant

Nicole Stoehr
as Pageant Contestant

Lauren Yee
as Pageant Contestant

Terry Bolo
as Pageant Worker (uncredited)

George W. Bush
as Self (archive footage) (uncredited)