Phillip Adrian Vasquez

as Lucas (voice)

Nancy Sullivan

as Dina / Old Lady / Teacher (voice)

Katie Leigh

as Carlotta / Patrick's Mom (voice)

Fiona Hardingham

as Veronica (voice)

Wally Wingert

as Kuro / Lagoon Monster (voice)

Jenifer Kaplan

as Melanie / Cameron's Mom / Child Patrick / Monster #4 / Monster #13 (voice)

Roger L. Jackson

as Nicolas (voice)

Joey Camen

as Shiro / Fergus / Mayor's Assistant (voice)

Michael Robles

as Cameron (voice)

Eric Larsen

as Peter (voice)

Johnny Rose

as Norcutt (voice)

Erik Brada

as Giraldo / Mongo (voice)

Anthony Budai

as Mayor (voice)

Chuck Kourouklis

as Durgo / Dock Master (voice)

Luis Daniel Ramírez Santiago

as Watson (voice)