Los Hermanos Willoughby

Will Forte Tim Willoughby (voice)

Maya Rudolph Nanny (voice)

Alessia Cara Jane Willoughby (voice)

Terry Crews Commander Melanoff (voice)

Martin Short The Father (voice)

Jane Krakowski The Mother (voice)

Seán Cullen Barnaby Twins (voice)

Ricky Gervais The Cat (voice)

Fiona Toth Travel Agent (voice)

Islie Hirvonen Perfect Daughter (voice)

Colleen Wheeler Social Worker (voice)

Bonnie Riley Mikelina (voice)

Robyn Ross Real Estate Agent (voice)

Shannon Chan-Kent Baby Ruth (voice)

Rebecca Husain Sweetie (voice)

Cristina Rosato Reporter (voice)

Alistair Abell Additional Voices

Emily Delahunty Additional Voices

Jordan Hemsley Additional Voices

Eliza Norbury Additional Voices