 John KrasinskiProject 77 (voice) | Project 77 (voice) |
 Lo MutucMai (voice) | Mai (voice) |
 Jason SudeikisJustin Pin / Ares (voice) | Justin Pin / Ares (voice) |
 Michael PeñaMomo (voice) | Momo (voice) |
 David CrossDr. Tanner Rice / Q-Bots (voice) | Dr. Tanner Rice / Q-Bots (voice) |
 Constance WuMolly (voice) | Molly (voice) |
 Kiana LedéGreenwood (voice) | Greenwood (voice) |
 Anna AkanaAni (voice) | Ani (voice) |
 Issac Ryan BrownRic (voice) | Ric (voice) |
| RReba BuhrDiagnostic Computer (voice) | Diagnostic Computer (voice) |
 Amber FriendlyMailbox Drone (voice) | Mailbox Drone (voice) |
 Jet JurgensmeyerJunior (voice) | Junior (voice) |
| JJoe KsanderRamen Cup (voice) | Ramen Cup (voice) |
| SShaye OgbonnaFan Boy (voice) | Fan Boy (voice) |
 Jon OswaldToothbrush / Door (voice) | Toothbrush / Door (voice) |
 Betsy SodaroToilet / Gate / Hairbrush (voice) | Toilet / Gate / Hairbrush (voice) |
 Fred TatasciorePolice Robots / Robot Podium / Announcer (voice) | Police Robots / Robot Podium / Announcer (voice) |
 Kitana TurnbullRJ (voice) | RJ (voice) |
| CCharlotte Alexis WhiteFan Girl (voice) | Fan Girl (voice) |
| EEmilio ZhouJunior, Door (voice) | Junior, Door (voice) |
 Byron ThamesAdditional Voices (voice) | Additional Voices (voice) |
 David AcordAdditional Voices (voice) | Additional Voices (voice) |
 Holly DorffAdditional Voices (voice) | Additional Voices (voice) |
| MMakenna CowgillAdditional Voices (voice) | Additional Voices (voice) |
 Moosie DrierAdditional Voices (voice) | Additional Voices (voice) |
| RReyna AmayaAdditional Voices (voice) | Additional Voices (voice) |
 Matthew LabyorteauxAdditional Voices (voice) | Additional Voices (voice) |
