The Bubble Guppies have to learn about the mail so they can send invitations to a party for Clam.
ジェイコブ・バートランド
Gil (Speaking)
Teddy Walsh
Gil (Singing)
ベイリー・ガンバートグリオ
Molly (Speaking)
Brianna Gentilella
Molly (Singing)
Tori Feinstein
Oona
