Jeff Daniels

Bernard Berkman

Laura Linney

Joan Berkman

Jesse Eisenberg

Walt Berkman

Owen Kline

Frank Berkman

William Baldwin

Ivan

Halley Feiffer

Sophie Greenberg

Anna Paquin

Lili

David Benger

Carl

Molly Barton

Graduate Student

Bo Berkman

Graduate Student

Matthew Kaplan

Graduate Student

Simon Kaplan

Graduate Student

Matthew Kirsch

Graduate Student

Daniella Markowicz

Graduate Student

Elizabeth Meriwether

Graduate Student

Ben Schrank

Graduate Student

Amy Srebnick

Graduate Student

Josh Srebnick

Graduate Student

Emma Straub

Graduate Student

Alan Wilkis

Graduate Student

James Hamilton

Man with Joan

Adam Rose

Otto

Henry Glovinsky

Lance

Eli Gelb

Jeffrey

Wayne Lawson

Talent Show Judge

Michael Santiago

Talent Show Judge

Juan Torriente

Talent Show Judge

Patricia Towers

Talent Show Judge

Peggy Gormley

Mrs. Greenberg

Peter Newman

Mr. Greenberg

Greta Kline

Greta Greenberg

Melissa Meyer

Professor

Benjamin Smolen

Student with Puppets

Michael Countryman

Mr. Simic

Alexandra Daddario

Pretty Girl

Nico Baumbach

Jeb Gelber

Maryann Plunkett

Ms. Lemon

Hector Otero

Hector

Ken Leung

School Therapist

Jo Yang

Nurse

Jonathan Baumbach

Man Outside Ms. Lemon's Office (uncredited)

Andrew Kaempfer

Valet (uncredited)

Britta Phillips

Talent Show Audience Member (uncredited)

Bobby Shue

Student (uncredited)

Dean Wareham

Talent Show Audience Member (uncredited)