Max Records

Max

Catherine Keener

Mom

James Gandolfini

Carol (voice)

Lauren Ambrose

KW (voice)

Catherine O'Hara

Judith (voice)

Forest Whitaker

Ira (voice)

Chris Cooper

Douglas (voice)

Paul Dano

Alexander (voice)

Spike Jonze

Bob (voice) / Terry (voice)

Pepita Emmerichs

Claire

Mark Ruffalo

The Boyfriend

Max Pfeifer

Claire's Friend

Madeleine Greaves

Claire's Friend

Joshua Jay

Claire's Friend

Ryan Corr

Claire's Friend

Steve Mouzakis

Teacher

Michael Berry Jr.

The Bull (voice)

Vincent Crowley

Carol Suit Performer

Sonny Gerasimowicz

Alexander Suit Performer

Nick Farnell

Judith Suit Performer

Sam Longley

Ira Suit Performer

Angus Sampson

The Bull Suit Performer

Mark McCracken

The Bull Additional Suit Performer

John Leary

Douglas Suit Performer

Alice Parkinson

KW Suit Performer

Garon Michael

KW Additional Suit Performer

James Epinfaniou

Additional Max Performer

Joshua Evans

Additional Max Performer

Tess Grimshaw Lloyd

Additional Max Performer

Lucas Haynes

Additional Max Performer

Nathan Veal

Additional Max Performer

Kalia Prescott

Max's Classmate (uncredited)