 Dave FrancoLloyd (voice) | Lloyd (voice) |
 Justin TherouxGarmadon (voice) | Garmadon (voice) |
 Fred ArmisenCole (voice) | Cole (voice) |
 Abbi JacobsonNya (voice) | Nya (voice) |
 Olivia MunnKoko (voice) | Koko (voice) |
 Kumail NanjianiJay (voice) | Jay (voice) |
 Michael PeñaKai (voice) | Kai (voice) |
 Zach WoodsZane (voice) | Zane (voice) |
 Jackie ChanMaster Wu / Mr. Liu (voice) | Master Wu / Mr. Liu (voice) |
 David BurrowsFuchsia Ninja (voice) | Fuchsia Ninja (voice) |
| AAlex KauffmanNinja Computer (voice) | Ninja Computer (voice) |
 Ali WongGeneral Olivia (voice) | General Olivia (voice) |
 Garret ElkinsRetirement General (voice) | Retirement General (voice) |
| TTodd HansenGeneral Omar (voice) | General Omar (voice) |
| DDoug NicholasGeneral Jolly (voice) | General Jolly (voice) |
 Lo MutucTerri IT Nerd (voice) | Terri IT Nerd (voice) |
| VVanara TaingAsimov IT Nerd (voice) | Asimov IT Nerd (voice) |
 Laura KightlingerMs. Laudita (voice) | Ms. Laudita (voice) |
 Randall ParkChen the Cheerleader (voice) | Chen the Cheerleader (voice) |
 RettaMaggie the Cheerleader (voice) | Maggie the Cheerleader (voice) |
 Chris HardwickRadio DJ (voice) | Radio DJ (voice) |
 Bobby LeePilates Studio Owner (voice) | Pilates Studio Owner (voice) |
 Robin RobertsRobin Roberts (voice) | Robin Roberts (voice) |
 Michael StrahanMichael Strahan (voice) | Michael Strahan (voice) |
 Constance WuMayor (voice) | Mayor (voice) |
 Kaan GuldurKid | Kid |
| VViola BaldwinAdditional Voices (voice) | Additional Voices (voice) |
| CCraig BerryAdditional Voices (voice) | Additional Voices (voice) |
| NNoël BrydebellAdditional Voices (voice) | Additional Voices (voice) |
| FFiona CyprienneAdditional Voices (voice) | Additional Voices (voice) |
