Carla Gugino Orion's Mom (voice)
Angela Bassett Sweet Dreams (voice)
Golda Rosheuvel Unexplained Noises (voice)
Colin Hanks Adult Orion (voice)
Jacob Tremblay Orion (voice)
Amy Hill Irene (voice)
Ike Barinholtz Light (voice)
Matt Dellapina Orion's Dad (voice)
Paul Walter Hauser Dark (voice)
Shannon Chan-Kent Adult Hypatia (voice)
Natasia Demetriou Sleep (voice)
Jack Fisher Richie Panici (voice)
Nat Faxon Insomnia (voice)
Werner Herzog Narrator (voice)
Sky Alexis Lisa (voice)
Steve Slanec Supervising Sound Editor
Hanna Kim Story Artist
Bonnie Arnold Executive Producer
Charlie Kaufman Writer
Walt Dohrn Executive Producer, Stray Cat / Insomnia Guy 2 (voice)
Joe Pitt Character Designer
Brandon Proctor Sound Re-Recording Mixer
Kaan Kalyon Story Artist
Jessey Drake Sound Designer
Hira Ambrosino Woman at the Drive-In (voice)
Lloyd Taylor Additional Writing
Aparna Nancherla Quiet (voice)
Adam Rosette Head of Story
Ania O'Hare Casting
Shawn Krause Supervising Animator
Tim Nielsen Sound Designer, Supervising Sound Editor, Sound Re-Recording Mixer
Matthew Bordenave Story Artist
M. Scott McKee Visual Effects Supervisor
Kent Osborne Story Artist
Bruno Etchepare Animation
Jason Oliver Dialogue Editor
Ren Hanami Adult Sally (voice)
Vivian Aguiar-Buff Music
Johane Matte Story Artist
Jordan Rosato Story Artist
Nico Marlet Character Designer
Brandon Sawyer Additional Writing
Matthew Festle Sound Effects, Sound Editor
Christine Bian Art Direction
Tom Caulfield Story Artist
Katie Galvan Casting
Nathan Nance Sound Re-Recording Mixer
Catherine Yuh Rader Story Artist
Toru Uchikado Insomnia Man (voice)
Lyle Nagy Story Artist
Julien Bocabeille Animation
Hans Dastrup Head of Animation
Shino Nakamichi Sally (voice)
Nik Ranieri Supervising Animator
Sean Charmatz Director, Irene's Boss / Cucumber Dentist / Soda / Insomnia Guy 1 (voice)
Nick Kishiyama Tycho (voice)
Peter McCown Producer
Ritchie Sacilioc Visual Development
Robert Lydecker Original Music Composer
Charan Paruchuri Production Manager
Justin Ridge Story Artist
Aliki Theofilopoulos Irene's Coworker / Mom / Juice Box / Insomnia Teacher (voice)
Guillaume Fesquet Visual Development
Dylan Stayman Assistant Editor
Ryan Munk CG Supervisor
Andy Schuhler Visual Development
Miho Tomimasu Visual Development
Alexandra Nickson Music
Brent Tyler VFX Supervisor
Laura Macias Foley Artist
Deepak Ganguly Animation Supervisor
Jessica Kaori Stanley Story Artist