Frank Welker

as Bubble Puppy (voice)

Zachary Gordon

as Gil (voice)

Brianna Gentilella

as Molly (voice)

Skai Jackson

as Little Fish (voice)

Tino Insana

as Mr. Grouper (voice)

Reyna Shaskan

as Oona (voice)

Angelina Wahler

as Deema (voice)

Christopher Borger

as Goby (voice)

Eamon Pirruccello

as Nonny (voice)