 Will ForteTim Willoughby (voice) | Tim Willoughby (voice) |
 Maya RudolphNanny (voice) | Nanny (voice) |
 Alessia CaraJane Willoughby (voice) | Jane Willoughby (voice) |
 Terry CrewsCommander Melanoff (voice) | Commander Melanoff (voice) |
 Martin ShortThe Father (voice) | The Father (voice) |
 Jane KrakowskiThe Mother (voice) | The Mother (voice) |
 Seán CullenBarnaby Twins (voice) | Barnaby Twins (voice) |
 Ricky GervaisThe Cat (voice) | The Cat (voice) |
| FFiona TothTravel Agent (voice) | Travel Agent (voice) |
 Islie HirvonenPerfect Daughter (voice) | Perfect Daughter (voice) |
 Colleen WheelerSocial Worker (voice) | Social Worker (voice) |
 Bonnie RileyMikelina (voice) | Mikelina (voice) |
 Robyn RossReal Estate Agent (voice) | Real Estate Agent (voice) |
 Shannon Chan-KentBaby Ruth (voice) | Baby Ruth (voice) |
 Rebecca HusainSweetie (voice) | Sweetie (voice) |
 Cristina RosatoReporter (voice) | Reporter (voice) |
 Alistair AbellAdditional Voices | Additional Voices |
 Emily DelahuntyAdditional Voices | Additional Voices |
| JJordan HemsleyAdditional Voices | Additional Voices |
 Eliza NorburyAdditional Voices | Additional Voices |
| Cristina RosatoAdditional Voices | Additional Voices |
 Jason SimpsonAdditional Voices | Additional Voices |
| LLaird ScabaAdditional Voices | Additional Voices |
 Rondel ReynoldsonAdditional Voices | Additional Voices |
| CCole HowardAdditional Voices | Additional Voices |
 Paul DobsonAdditional Voices | Additional Voices |
 Caitlyn BairstowAdditional Voices | Additional Voices |
