Stan

Milo Coy

Acting

Grown Up Stan (voice)

Jack Black

Acting

Mom

Lee Eddy

Acting

Dad

Bill Wise

Acting

Vicky

Natalie L'Amoreaux

Acting

Steve

Josh Wiggins

Acting

Jana

Jessica Brynn Cohen

Acting

Greg

Sam Chipman

Acting

Stephanie

Danielle Guilbot

Acting

Kranz

Zachary Levi

Acting

Bostick

Glen Powell

Acting

Grandfather

Larry Jack Dotson

Acting

Grandmother #1

Mona Lee Fultz

Acting

Grandmother #2

Jennifer Griffin

Acting

Sam The Rocket Man

Holt Boggs

Acting

Tony

Reese Armstrong

Acting

Music Class Teacher

Natalie Joy

Acting

Science Teacher

Suzanne Deal Booth

Acting

Principal Cowan

Chris Olson

Acting

Pinball Buyer

Samuel Davis

Acting

Statue-Maker Kid

Mia Gonzalez

Acting

Bales

Brian Villalobos

Acting

Jack

Chris Zurcher

Acting

Kid on Astroway

Alex Fink

Acting

Young Lady on Astroway

Zia Kinzy

Acting

Mr. St. George

David DeLao

Acting

Drive-In Employee

Noah Randall

Acting

Mindy

Athena Wintle

Acting

Emanuel

Xavier Patterson

Acting

SIMSUP

Nick Stevenson

Acting

Abominable Snowman

William Carroll

Acting

Lisa (uncredited)

Avery Joy Davis

Acting

Hoodlum (uncredited)

Christian Moran

Acting

NASA Controlman (uncredited)

Nicholas Andrew Rice

Acting

AstroWorld Kid (uncredited)

Keslee Blalock

Acting

Service Station Attendant (uncredited)

Brent A. Riggs

Acting

SIMSUP (uncredited)

P. Michael Hayes II

Acting

Laughing Boy (uncredited)

Flint Nattinger

Acting