Eva Noblezada as Sam (voice)

Simon Pegg as Bob (voice)

Jane Fonda as Dragon (voice)

Whoopi Goldberg as Captain (voice)

Colin O'Donoghue as Gerry (voice)

Lil Rel Howery as Marvin (voice)

Flula Borg as Jeff the Unicorn (voice)

John Ratzenberger as Rootie (voice)

Adelynn Spoon as Hazel (voice)

Grey DeLisle as Mrs. Rivera / Saorise / Penny Depot Boss (voice)

Suzy Nakamura as Social Worker (voice)

Kari Wahlgren as Hazel's Mom / Aine (voice)

Kwaku Fortune as Gael (voice)

Chris Edgerly as Typing Bunny (voice)

Moe Irvin as Phil the Pig Foreman (voice)

Nick Thurston as Hazel's Dad / Nosy Cat (voice)

Fred Tatasciore as Quinn / Fred (voice)