All Cast

Milo Coy

Milo Coy

Stan

Jack Black

Jack Black

Grown Up Stan (voice)

Lee Eddy

Lee Eddy

Mom

Bill Wise

Bill Wise

Dad

Natalie L'Amoreaux

Natalie L'Amoreaux

Vicky

Josh Wiggins

Josh Wiggins

Steve

Jessica Brynn Cohen

Jessica Brynn Cohen

Jana

Sam Chipman

Sam Chipman

Greg

Danielle Guilbot

Danielle Guilbot

Stephanie

Zachary Levi

Zachary Levi

Kranz

Glen Powell

Glen Powell

Bostick

Larry Jack Dotson

Larry Jack Dotson

Grandfather

Mona Lee Fultz

Mona Lee Fultz

Grandmother #1

Jennifer Griffin

Jennifer Griffin

Grandmother #2

Holt Boggs

Holt Boggs

Sam The Rocket Man

Reese Armstrong

Reese Armstrong

Tony

Natalie Joy

Natalie Joy

Music Class Teacher

Suzanne Deal Booth

Suzanne Deal Booth

Science Teacher

Chris Olson

Chris Olson

Principal Cowan

Samuel Davis

Samuel Davis

Pinball Buyer

Mia Gonzalez

Mia Gonzalez

Statue-Maker Kid

Brian Villalobos

Brian Villalobos

Bales

Chris Zurcher

Chris Zurcher

Jack

Alexander Fink

Alexander Fink

Kid on Astroway

Zia Kinzy

Zia Kinzy

Young Lady on Astroway

David DeLao

David DeLao

Mr. St. George

Noah Randall

Noah Randall

Drive-In Employee

Athena Wintle

Athena Wintle

Mindy

Xavier Patterson

Xavier Patterson

Emanuel

Nick Stevenson

Nick Stevenson

SIMSUP

William Carroll

William Carroll

Abominable Snowman

Avery Joy Davis

Avery Joy Davis

Lisa (uncredited)

Christian Moran

Christian Moran

Hoodlum (uncredited)

Nicholas Andrew Rice

Nicholas Andrew Rice

NASA Controlman (uncredited)

Keslee Blalock

Keslee Blalock

AstroWorld Kid (uncredited)

Brent A. Riggs

Brent A. Riggs

Service Station Attendant (uncredited)

P. Michael Hayes II

P. Michael Hayes II

SIMSUP (uncredited)

Flint Nattinger

Flint Nattinger

Laughing Boy (uncredited)