Tim Robbins

Nathan Bronfman

Patricia Arquette

Lila Jute

Rhys Ifans

Puff

Miranda Otto

Gabrielle

Mary Kay Place

Nathan's Mother

Robert Forster

Nathan's Father

Peter Dinklage

Frank

Rosie Perez

Louise

Hilary Duff

Young Lila Jute

Miguel Sandoval

Wendall the Therapist

Toby Huss

Puff's Father

Ken Magee

Police Detective

Sy Richardson

Police Detective

David Warshofsky

Police Detective

Stanley DeSantis

Doctor

Bobby Harwell

Congressman

Daryl Anderson

Congressman

Bobby Pyle

Young Puff

Chase MacKenzie Bebak

Young Nathan

Anthony Winsick

Wayne Bronfman

Mary Portser

Bistro Waitress

Laura Grady

Aversion Therapy Model

Angela Little

Chester's Waitress

Deborah Ferrari

Stripper

Jeremy Kramer

Lecture Host

Nancy Lenehan

Puff's Mother

Juan Canopii

Reporter (uncredited)