Lois Griffin as Princess ArielPeter Griffin As Prince EricCarter Pewterschmidt As King TritonBabara Pewterschmidt As Queen AthenaChris Griffin As FlounderCleveland Brown As SebastianKaren Griffin As UrsulaTomax & Xamot (G.I. Joe A Real American Hero) As Flotsam And Jetsam, Cloak And DaggerJohn Herbert As MorganaJoe Swanson As Undertow The Tiger SharkStewie Griffin As GrimsbyBonnie Swanson As Carlotta The MaidMort Goldman As Chef LouieBrian Griffin As MaxGlen Quagmire As ScuttleMeg Griffin As Princess MelodyBruce The Performance Artist As Harold The SeahorseCarol Pewterschmidt As AquataJillian Russel Wilcox As AndrinaJoyce Kinney As AristaAngela As AttinaDonna Tubbs Brown (The Cleveland Show) As AdellaTricia Takanawa As AlanaJeff Fischer (American Dad) As TipDr. Elmer Hartman As DashSteve S