Millie Bobby Brown Michelle
Woody Harrelson Mr. Peanut (voice)
Chris Pratt Keats
Giancarlo Esposito Colonel Bradbury / The Marshall
Billy Bob Thornton Voice (uncredited)
Stanley Tucci Ethan Skate
Anthony Mackie Herman (voice)
Brian Cox Popfly (voice)
Alan Tudyk Cosmo (voice)
Ke Huy Quan Dr. Amherst / P.C (voice)
Colman Domingo Wolfe (voice)
Hank Azaria Perplexo (voice)
Jenny Slate Penny Pal (voice)
Jason Alexander Ted / Wingman
Necar Zadegan Farah Bedi
Holly Hunter Madeline Vance
Andy Muschietti Executive Producer
Michael Trucco Ben Alcott
Marin Hinkle Ms. Sablinsky
Anthony Russo Director, Producer
Stephen McFeely Screenplay, Executive Producer
Joe Russo Skeevy Bot (voice), Director, Producer
Myles Alexander Evans Sentre Tech #2
Paul Sonski Set Designer
Woody Norman Christopher
Sarah Halley Finn Casting
Tuc Watkins Arthur Meadows
Rahul Kohli Miles Watlow
Patti Harrison Ligotti
Billy Gardell Garbage Bot (voice)
Christopher Markus Executive Producer, Screenplay
Alan Silvestri Original Music Composer
Martin Klebba Herman / Milkman Bot
Terry Notary Other, Mr. Peanut / Pop Fly / Sentre Drones / Ice Cream Bot / Skeeve Bot
Bill Clinton Self (archive footage) (uncredited)
Merle Dandridge News Anchor
Will Lyman Documentary Narrator (voice)
Michael Semanick Sound Re-Recording Mixer
Adam Croasdell The Marshall / Taco Bot / Sentry Bot / Blitz
Rob Mars Stunts
Jan Philip Cramer Head of Animation
Mike Larocca Producer
Randy James Beckman Stunts
Angela Russo-Otstot Producer
Greg Cromer Dad
Mark Jan Wlodarkiewicz Music Editor
Heiko von Drengenberg Storyboard Artist
Barbara Muschietti Executive Producer
Nathan Nance Sound Re-Recording Mixer
Vince Pisani Science Professor
Kevin Martel Animation Supervisor
Dennis Gassner Production Design
Edson Williams Visual Effects Supervisor
Anna Mercedes Mendez Stunts
Rob Gronkowski Blitz (voice)
Jess Durham Stunts
Geoffrey Haley Executive Producer, "A" Camera Operator, Steadicam Operator
J.R. Grubbs Sound Effects Editor
Caitlin Dechelle Stunts
Regis Harrington Stunts
John C. Hoffler Jr. Additional Second Assistant Camera
Alan Boell Sentre Tech #1
Stephen F. Windon Director of Photography
Alexandra Matheson Second Assistant "A" Camera
Bob E. Krattiger Gaffer
Robin Buday First Assistant Editor
Kurt Loder Kurt Loder
Jeanie King Executive Visual Effects Producer
Russell Earl Visual Effects Supervisor
Don Thai Theerathada Stunt Coordinator
Richard L. Johnson Production Design
R. Matthew Scheib Stunts