Kate Winslet

Character: Sarah Pierce

Patrick Wilson

Character: Brad Adamson

Jennifer Connelly

Character: Kathy Adamson

Gregg Edelman

Character: Richard Pierce

Sadie Goldstein

Character: Lucy Pierce

Ty Simpkins

Character: Aaron Adamson

Noah Emmerich

Character: Larry Hedges

Jackie Earle Haley

Character: Ronnie J. McGorvey

Phyllis Somerville

Character: May McGorvey

Helen Carey

Character: Jean

Catherine Wolf

Character: Marjorie

Mary B. McCann

Character: Mary Ann

Trini Alvarado

Character: Theresa

Marsha Dietlein

Character: Cheryl

Jane Adams

Character: Sheila

Raymond J. Barry

Character: Bullhorn Bob

Sarah Buxton

Character: Slutty Kay

Thomas Greaney

Character: Troy

Anna Audia

Character: Isabella

Celestial Hakim

Character: Courtney

Hunter Reid

Character: Christian

Chadwick Brown

Character: Tony Correnti

Phil McGlaston

Character: Dewayne Rogers

Bruce Kirkpatrick

Character: Bart Williams

Adam Mucci

Character: Richie Murphy

Chance Kelly

Character: Pete Olaffson

Rebecca Schull

Character: Laurel

Crystal Field

Character: Josephine

Lola Pashalinski

Character: Bridget

Walker Ryan

Character: "G"

David Cole

Character: Skateboarder 2

Weston Elrod

Character: Skateboarder 3

Erica Fae

Character: Richard's Secretary

Leo Trombetta

Character: Frank

Christopher Nicholas Smith

Character: Steak House Waiter

Adam Sietz

Character: Large Man

Tom Perrotta

Character: Small Man

Stan Carp

Character: Cabbie

Sandra Berrios

Character: Kind Woman in Hospital

Ivar Brogger

Character: ICU Counselor

Myra Turley

Character: ICU Nurse

David Rowden

Character: Tow Yard Attendant

Paul Mott

Character: Boy in Kathy's Documentary

Margaret Pace

Character: EMT

Beatrice Rigaud

Character: Concerned Mom at Pool #1

Mary Goggin

Character: Concerned Mom at Pool #2

Jillian Lindig

Character: Concerned Mom at Pool #3

William Harvey

Character: 1st Policeman at Pool

Casper Andreas

Character: 2nd Policeman at Pool

Matt Garifo

Character: Lifeguard

Brooke Fazio

Character: Snack Girl

Monica Dobson

Character: Wading Pool Mom

Ken Tirado

Character: Bartender

Carlie LaPorta

Character: Child at Steakhouse

Cody Rubenstein

Character: Child at Steakhouse

Joe Guest

Character: Ted from Richard's Office

Bruce Lee Gross

Character: Ray from Next Door

Patrick Larkin

Character: Auditor Team Captain

Michael Diesel

Character: Police Officer at McGorvey's

Jennifer Rainville

Character: Reporter - "Channel 5 News" Segment

Gary Anthony Ramsay

Character: Off-Screen Anchor - "Channel 5 News" Segment (voice)

Patricia A. Gangemi

Character: Concerned Parent #1 - "Channel 5 News" Segment

Cynthia L. Wiese

Character: Concerned Parent #2 - "Channel 5 News" Segment

Loren Wiese

Character: Concerned Parent #3 - "Channel 5 News" Segment

Clare F. Mitchell

Character: Concerned Parent #4 - "Channel 5 News" Segment

Leon Vitali

Character: Oddly Familiar Man

Conrad Angel Corral

Character: Slutty Kay Fan Club Member

Darrell Geer

Character: Slutty Kay Fan Club Member

Gil Ira Hayes

Character: Slutty Kay Fan Club Member

Mark A. Pierce

Character: Slutty Kay Fan Club Member

Marshall Lefcourt

Character: Slutty Kay Fan Club Member

John Begley

Character: Background Football Player

Mike Ganim

Character: Background Football Player

Travis Koestler

Character: Skateboarder

Daniel Falla

Character: Skateboarder

Luis Tolentino

Character: Skateboarder

Tugman Tookmanlian

Character: Skateboarder

Will Lyman

Character: Narrator (voice)

Steve Antonucci

Character: Swimmer (uncredited)

Deanna Dys

Character: Vanity Fair Pool Girl (uncredited)

Ashley Fung

Character: Girl at the Pool (uncredited)

Marianne Hettinger

Character: Sunbathing Model (uncredited)

Callie Thompson

Character: Little Girl at Pool (uncredited)