Eduardo Franco Trevin (voice)
Toni Collette Agatha Gillman (voice)
Colman Domingo Arthur Gillman (voice)
Jane Fonda Grandmamah (voice)
Will Forte Gordon Lighthouse (voice)
Lana Condor Ruby Gillman (voice)
Liza Koshy Margo (voice)
Annie Murphy Chelsea Van Der Zee (voice)
Ramona Young Bliss (voice)
Nicole Byer Janice (voice)
Sam Richardson Uncle Brill (voice)
James Ryan Thanks
Echo Kellum Doug (voice)
Tom McGrath Thanks
Randy Thom Sound Designer, Confetti Cannon (voice)
Pam Brady Writer
Jordan Matter School Principal (voice)
Joseph Izzo Associate Producer
Mike Mitchell Executive Producer
Brian Chumney Supervising Sound Editor
Paul Tibbitt Thanks
Joel Crawford Thanks
Emma Chamberlain Reporter (voice)
Gary Rizzo Sound Re-Recording Mixer
Ricardo Hurtado Student #1 / Student #10 (voice)
Kirk DeMicco Director
Caleb Pierce Student #3 (voice)
Januel Mercado Thanks
Jerry Schmitz Thanks
Kelly Cooney Cilella Producer
Nicole Holofcener Thanks
Jaboukie Young-White Connor (voice)
Craig Kellman Character Designer
Christi Soper Hilt Casting
Lynnanne Zager Phone Voice (voice)
JP Sans Animation
Julien Bocabeille Animation
Karen Foster School Librarian (voice)
Guillermo Willie Real Character Designer
Dan Wagner Animation
Anthony Hodgson Animation Supervisor
Ronni Brown Foley Artist
David C. Hughes Sound Effects Editor
Tiffany Wu Student #7 (voice)
Sheri Ozeki Music Editor
Onur Yeldan Animation Supervisor
Jana Vance Foley Artist
Leff Lefferts Supervising Sound Editor, Sound Re-Recording Mixer
Suzanne Buirgy Carol (voice)
Martin P. Hopkins Animation
Faryn Pearl Co-Director
Robert Huth Animation
Ares Deveaux Animation
Shaun Farley Sound Effects Editor
Greg Whittaker Animation
Mark Roennigke Animation Supervisor
Prashanth Cavale Lead Animator
Marek Kochout Animation
William Salazar Animation
Mark Gillins Associate Editor
C. Jin Im Lighting Supervisor
Alexandre Puvilland Visual Development
Blue Chapman Sam Gillman (voice)
Michael Amos Animation Supervisor
David Couchariere Animation
Nick Fletcher Additional Editor
Ariel Chisholm Lighting Supervisor
Steve Vanseth Animation
Steven Hornby Animation
David Lisbe Animation
Drew Adams Animation Supervisor
Nicolas Prothais Animation