Natalie Portman Mary Muggle-Wump (voice)
Emilia Clarke Pippa (voice)
Alan Tudyk The Sweet-Toed Toad (voice)
Nicole Byer Beverly Onion (voice)
Jason Mantzoukas Mayor Wayne John John-John (voice)
Margo Martindale Credenza Twit (voice)
Dee Bradley Baker Muggle-Wump Efforts / Florbnorbles (voice)
Phil Johnston Director, Producer, Mr. Napkin (voice), Writer
Timothy Simons Marty Muggle-Wump (voice)
David Byrne Songs, Gordon Sniffles (voice)
Roald Dahl Novel
Rebecca Wisocky Dee Dumdie-Dungle (voice)
Maitreyi Ramakrishnan Beesha Balti (voice)
Scott Whyte Voice Changer 30,000 / Rabney "Lyle" Kalemann (voice)
Mark Proksch Horvis Dungle (voice)
Johnny Vegas Jim Twit (voice)
Rif Hutton Cop #1 (voice)
Sami Amber Jeremy (voice)
Shane Sweet Triperot Man (voice)
David Cowgill Golf Announcer (voice)
Della Saba Dorcas Dumdie-Dungle (voice)
Hayley Williams Songs, Marleeta Punge (voice)
Stephanie Escajeda Constance Klurb (voice)
Rémi Salmon Production Design
John H. Williams Executive Producer
Cymbre Walk Casting
Elisabeth Murdoch Executive Producer
Zarah Kulczycki Harold Hulse (voice)
Erika Dapkewicz Editor, Florbnorble Leader (voice)
Craig Rittenbaum Line Producer
Julie Lockhart Executive Producer
William Calvert Jailer (voice)
Todd Demong Co-Director
Sarah Smith Executive Producer
Kirk Garfield VFX Supervisor
Lara Breay Executive Producer
Mary Coleman Executive Producer
Meg Favreau Writer
Oli Julian Original Music Composer
Ryan Anderson Lopez Busby Mulch (voice)
Charlie Berens Gorb Klurb (voice)
Bianca K. Dansoh Production Manager
Katie Shanahan Co-Director
Maggie Malone Producer
Valentin Beaumont Visual Effects Technical Director
Jack Kasprzak Animation Director
Natalie Fischer Executive Producer
Daisy May West Producer
Matthew Bilton Head of Layout
Israa Zainab Mandy Muggle-Wump (voice)
Riley King Tuna Remnant (voice)
Fernando Peque Art Direction