Steve Antin

Monkey Zetterland

Patricia Arquette

Grace

Sandra Bernhard

Imogene

Sofia Coppola

Cindy

Tate Donovan

Brent Zetterland

Rupert Everett

Sasha

Katherine Helmond

Honor Zetterland

Bo Hopkins

Mike Zetterland

Ricki Lake

Bella the Stalker

Debi Mazar

Daphne

Martha Plimpton

Sofie

Robin Antin

Waitress in Canters

Frances Bay

Grandma

Luca Bercovici

Boot Guy

Chuck Grieve

Guy at Taco Stand

Lance Loud

Psychiatrist

Nicholas Matus

Young Monkey

Chris Nash

Policeman

Louis J. Pearlman

Warden / Observation Psychiatrist

Blair Tefkin

Brent's Assistant

Marc Lafia

Observation Psychiatrist

Melissa Sullivan

Observation Psychiatrist

Lauren Zuckerman

Observation Psychiatrist

Reuven Russell

CPR Rabbi (uncredited)

Vivian Schilling

Network Producer (uncredited)