Dad

Mark Ruffalo

Hal

Cooper Raiff

Harper

Lili Reinhart

Audrey

Addison Timlin

Kate

Betty Gilpin

Abby

Havana Rose Liu

Jesse

Alyah Chanelle Scott

Kalen

Christopher Meyer

Young Harper (Age 6)

Daphne Abinante

Mom

Michelle Pascarella

Young Hal (2004)

Brady Jerome

Ms. Havens

Christine Woods

Josh

Asher Alexander

Eli

Lincoln Bloomfield

Mitali

Ayla Manji

Jessica

Azra Anna Kearns

Chris

Pierce Nation

Hal's Roommate

Keen Ruffalo

Sophie

Askyler Bell

Gianna

Alexandra Fatovich

Dan

Jackie Kay

Hal's Roommate

Fray Forde

Dr. Kessler

Karl T. Wright

Mr. Todd

Lon Gowan

Nick

Lucas Grant

Grace (voice)

Christine Kellogg-Darrin

Nathan

Nathaniel Vinarnik

Ruby

Jade Wright

Realtor

Jamie Daniels

Adam

T.J. Power

Crossing Guard

Ian McQuown

Young Harper (2004)

Makenzie Carmichael

Liam

Zach Noe Towers

Antisocial Roommate

Anna Czerniecki

Sex Worker

Annabelle Dexter-Jones

Marlene

Jessica St. Clair

Patricia

Laura Leyva

Blake

Ben Lewis

Customer

McKinley Carlin

Audrey's Ex-Husband

David John Walsh

Hairdresser

Michelle Haro

Old Guy

Dan Sachoff

Mitali's Mom

Upasana Beharee

Mitali's Dad

Vyas Sharma

Mitali's Brother

Daniel Guerrido

Old Fart Teacher

Al Spencer

Young Harper (2009)

Colette Porch

Young Hal (2009)

Vincent Canale