Brie Larson Grace Howard

John Gallagher Jr. Mason

Kaitlyn Dever Jayden Cole

Rami Malek Nate

LaKeith Stanfield Marcus

Kevin Hernandez Luis

Melora Walters Dr. Hendler

Stephanie Beatriz Jessica

Lydia Du Veaux Kendra

Alex Calloway Sammy

Frantz Turner Jack

Diana Maria Riva Nurse Beth

Harold Cannon Mason's Dad

Silvia Curiel Mason's Mom

Bran'dee Allen Shawnta

Danny Roper David

Elyssa Gutierrez Anna

Garryson Zamora Thom

Michael Marto Connor

Patricia Barrett Tracy

Tanya Marie A. Bitanga Nikki

Zoe Wilkens Spring

Angel Amaral Trevor

Arnold Barrera Mariachi Band Member, Trumpet

Joseph Bruley Mariachi Band Member, Guitar

Fred Herrera Mariachi Band Member, Guitarron

Shika Moran Guest at Mason's Parents' Party

Nikki Chapman Guest at Mason's Parents' Party

Fay DeLaCruz Guest at Mason's Parents' Party

Cameron Gore Guest at Mason's Parents' Party

Anthony Puentes Guest at Mason's Parents' Party

Veronica Puentes Guest at Mason's Parents' Party

Laura Macias Guest at Mason's Parents' Party

Ana Shiravi Guest at Mason's Parents' Party

Mohammad Shiravi Guest at Mason's Parents' Party

Edward Goldstein Guest at Mason's Parents' Party

Etta Goldstein Guest at Mason's Parents' Party

Brett Goldstein Guest at Mason's Parents' Party

Alexandra Estrada Guest at Mason's Parents' Party

Michelle Nordahl Guest at Mason's Parents' Party

Jared Callahan Guest at Mason's Parents' Party

Joel P. West Guest at Mason's Parents' Party

Jessica Nordahl Guest at Mason's Parents' Party

Andrea Macias Guest at Mason's Parents' Party

Kaily McCoy Guest at Mason's Parents' Party

Thaddeus McRae Guest at Mason's Parents' Party

Kenny Laubbacher Guest at Mason's Parents' Party

Pamela Luna Guest at Mason's Parents' Party

Valentina I. Valentini Guest at Mason's Parents' Party

Brad Kester Guest at Mason's Parents' Party

James Abraham Guest at Mason's Parents' Party

Angelina Assereto Guest at Mason's Parents' Party

Merrily Cretton Guest at Mason's Parents' Party

Spring Cretton Guest at Mason's Parents' Party

Patrick James Guest at Mason's Parents' Party

Christopher Jun Guest at Mason's Parents' Party