Michael BellAllstar Seaworthy/ Bigweed/Elder #4 B.J. WardCasey Kelp/ Lil' Seaweed Frank WelkerTooter Shelby/ Occy/ Grandpa Wetworth/ Great Snork Nork/ Finneus Nancy CartwrightDaffney Gilphin Barry GordonJunior Wetworth/ Governor Wetworth Edie McClurgMs. Seabottom/ Mrs. Seaworthy Clive RevillDr. Galeo Seaworthy (voice) Fredricka WeberWillie Wetworth Gail MatthiusSmallstar Seaworthy René AuberjonoisDr. Strangesnork Brian CummingsDimmy Finster Mitzi McCallAuntie Marina Joan GardnerMrs. Wetworth Roger RoseAdditional Voices (voice) Joseph BarberaWriter / Producer William HannaExecutive Producer Freddy MonnickendamExecutive Producer Andrea RomanoCasting Director Dennis BonnellVisual Effects Supervisor 
