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

Elizabeth Meriwether

Graduate Student

Adam Rose

Otto

Eli Gelb

Jeffrey

Michael Santiago

Talent Show Judge

Peggy Gormley

Mrs. Greenberg

Peter Newman

Mr. Greenberg

Greta Kline

Greta Greenberg

Michael Countryman

Mr. Simic

Alexandra Daddario

Pretty Girl

Nico Baumbach

Jeb Gelber

Maryann Plunkett

Ms. Lemon

Ken Leung

School Therapist

Jo Yang

Nurse

Andrew Kaempfer

Valet (uncredited)

Britta Phillips

Talent Show Audience Member (uncredited)

Dean Wareham

Talent Show Audience Member (uncredited)