Michelle Williams as Mitzi Fabelman

Paul Dano as Burt Fabelman

Seth Rogen as Benny Loewy

Gabriel LaBelle as Sammy Fabelman

Mateo Zoryan Francis-DeFord as Younger Sammy Fabelman

Keeley Karsten as Natalie Fabelman

Alina Brace as Young Natalie Fabelman

Julia Butters as Reggie Fabelman

Birdie Borria as Younger Reggie Fabelman

Judd Hirsch as Uncle Boris

Sophia Kopera as Lisa Fabelman

Jeannie Berlin as Hadassah Fabelman

Robin Bartlett as Tina Schildkraut

Sam Rechner as Logan Hall

Oakes Fegley as Chad Thomas

Chloe East as Monica Sherwood

Isabelle Kusman as Claudia Denning

Chandler Lovelle as Renee

Gustavo Escobar as Sal

Nicolas Cantu as Hark

Cooper Dodson as Turkey

Gabriel Bateman as Roger

Stephen Matthew Smith as Angelo

James Urbaniak as Grand View High School Principal

Alex Quijano as Grand View High School PE Coach

Kalama Epstein as Barry

Connor Trinneer as Phil Newhart

Lane Factor as Dean

Greg Grunberg as Bernie Fein

David Lynch as John Ford

Jan Hoag as Nona

Carlos Javier Castillo as Camera Store Clerk

Ezra Buzzington as Camera Store Clerk #2

Paul Chepikian as Pinnacle Peak Owner

Brinly Marum as Janet Benedict

Mason Bumba as Stunt Soldier Boy

Mary M. Flynn as Singer #1

Adriel Porter as Singer #2

Tia Nalls as Singer #3

Larkin Campbell as Scout Father

Harper Dustin as Natalie Photo Double

Crystal the Monkey as Bennie the Monkey

Art Bonilla as Taxi Driver (uncredited)

Meredith VanCuyk as Student (uncredited)

Vera Myers as Senior Classmate (uncredited)

Cody Mitchell Key as Boy Scout (uncredited)

Caroline Anna-Kaye Green as Senior Classmate (uncredited)

Rob Shiells as Chad's Posse (uncredited)

Julyah Rose as Theater Goer (uncredited)

Jonathan Moorwood as Chad's Posse (uncredited)

Ari Davis as Theatre Patron (uncredited)

Jared Becker as Lead Guitarist (uncredited)

Kendal Evans as Balloon Girl (uncredited)

Trang Vo as High School Friend (uncredited)

Alejandro Fuenzalida as Boy Scout (uncredited)

Orion Hunter as Boy Scout (uncredited)

Samantha Rose Gomez as Boy Scout Sibling (uncredited)

Taylor Stone as Senior Classmate (uncredited)

Sarah Hamilton as Senior Classmate (uncredited)

Paige Locke as Cheerleader (uncredited)

Marissa McBride as Senior Classmate (uncredited)

Malachi Mickelonis as Student (uncredited)

Max David Weinberg as Student (uncredited)

Cameron Hennings as Student (uncredited)

Nicole Alicia Xavier as Sammy’s Classmate (uncredited)

Nikolai Bazan as Boy Scout (uncredited)

Nicco Caruso as Prom Date (uncredited)

Colt Carville as Boy Scout (uncredited)

Ure Egbuho as Theater Patron (uncredited)

April Elize as Classmate (uncredited)

Seth Fuentes as Student (uncredited)

Andrew Goodman as Pedestrian/Theater Patron (uncredited)

Phoebe Grant as Student (uncredited)

Cat Heinen as High School Student (uncredited)

Jake Kidwell as Volleyball Player (uncredited)

Julian Lerma as Boy Scout in Theater (uncredited)

Cody Miller as Chad's Teammate (uncredited)

Nick W. Nicholson as Teacher (uncredited)

Molly Renze as Driver (uncredited)

Paige Robberstad as Cheerleader (uncredited)

Brandon Keith Rogers as Senior Class Member (uncredited)

Lucy Schmidt as Sammy's Classmate (uncredited)

Nicole Singh as Student (uncredited)