Millie Bobby Brown

• Michelle

Ke Huy Quan

• Dr. Amherst / P.C (voice)

Jason Alexander

• Ted / Wingman

Woody Norman

• Christopher

Giancarlo Esposito

• Colonel Bradbury / The Marshall

Stanley Tucci

• Ethan Skate

Woody Harrelson

• Mr. Peanut (voice)

Anthony Mackie

• Herman (voice)

Brian Cox

• Popfly (voice)

Jenny Slate

• Penny Pal (voice)

Hank Azaria

• Perplexo (voice)

Colman Domingo

• Wolfe (voice)

• Actor

Alan Tudyk

• Cosmo (voice)

Ann Russo

• Mom

Greg Cromer

• Dad

Vince Pisani

• Science Professor

Camrus Johnson

• Corporal Carson

Kurt Loder

• Kurt Loder

Will Lyman

• Documentary Narrator (voice)

Aubrey Brockwell

• Milkmatic Girl

Tuc Watkins

• Arthur Meadows

Billy Gardell

• Garbage Bot (voice)

Merle Dandridge

• News Anchor

Necar Zadegan

• Farah Bedi

Lia Mariella Russo

• Cheerleader

Marin Hinkle

• Ms. Sablinsky

Rahul Kohli

• Miles Watlow

Joe Russo

• Skeevy Bot (voice)

Rob Gronkowski

• Blitz (voice)

Susan Leslie

• Mrs. Scissors (voice)

Patrick Newall

• Bumper Car Drone Pilot

Terence Lee

• Cosmo Capture Drone

Alan Boell

• Sentre Tech #1

Myles Alexander Evans

• Sentre Tech #2

Chris Castaldi

• Determined Drone Pilot

Terry Notary

• Mr. Peanut / Pop Fly / Sentre Drones / Ice Cream Bot / Skeeve Bot

Adam Croasdell

• The Marshall / Taco Bot / Sentry Bot / Blitz

Devyn Dalton

• Cosmo

Gabrielle Maiden

• Penny Pal / Mrs. Scissors / Happy Pill Bot / Sentre Drones

Martin Klebba

• Herman / Milkman Bot

Sebastian Soler

• Orderly (uncredited)

Bill Clinton

• Self (archive footage) (uncredited)

Nancy Pelosi

• Self (archive footage) (uncredited)

Joe Russo

Mike Larocca

Anthony Russo

Stephen F. Windon

Alan Silvestri

Dennis Gassner

Jeffrey Ford

Judianna Makovsky

Stephen McFeely

Jeffrey Ford

Christopher Markus

Chris Castaldi

Simon Stålenhag

Geoffrey Haley

Jake Aust

Patrick Newall

Joe Russo

Christopher Markus

Stephen McFeely

Anthony Russo

Jan Philip Cramer

Geoffrey Haley

James Young

Simon Stålenhag

Jeanie King

Angela Russo-Otstot

Nick Van Dyk

Andy Muschietti

Barbara Muschietti

Joseph J. Micucci

Matthew E. Butler

David Feinsilber

Sarah Halley Finn

Patrick Newall

Chris Castaldi

Don Thai Theerathada

Michael Li

Mark Miscione

Chris Romrell

Dan B. Norris

Sierra Hawkins

Callie Croughwell

Denise Gallo

Terry Notary

Michelle Andrea Adams

Marc Canonizado

Caitlin Dechelle

Noah Bain Garret

Dean Grimes

Regis Harrington

CC Ice

Niko Nedyalkov

Steven Shelby

Marvin Ross

Nicolas Bosc

John Cihangir

Jess Durham

Alessandro Folchitto

Travis Gomez

Carlos Guity

Nate Hitpas

Karin Justman

Rob Mars

Jessica Merideth

Anna Mercedes Mendez

Rudolf Weber

Troy Butler

Chad Crumley

Tim James

Matt LaBorde

Alexander McCaslin

Jessica Nam

Jay Pearson

Michelle Rose

R. Matthew Scheib

Mark Weinhandl

Geoffrey Haley

Daniel Laurie

Samson Neslund

Shannon Mills

Michael Semanick

Nathan Nance

Samson Neslund

Michael Meinardus

Russell Earl

Karen Clarke

Heikki Kossi

Liz Bernard

Dennis Sands