Brenda SongAnne Boonchuy (voice) Justin FelbingerSprig Plantar (voice) Amanda LeightonPolly Plantar (voice) Bill FarmerHopediah Plantar (voice) On BralyMrs. Boonchuy (voice) Brian SounalathMr. Boonchuy (voice) Stephen RootMayor Toadstool (voice) James Patrick StuartOne-Eyed Wally (voice) Laila BerzinsSadie Croaker (voice) Keith DavidKing Andrias (voice) Jack McBrayerToadie (voice) Kaitlyn RobrockFelicia Sundew (voice) Brian MaillardLeopold Loggle (voice) Anna AkanaSasha Waybright (voice) Dee Bradley BakerBessie (voice) John DiMaggioStumpy (voice) Haley TjuMarcy Wu (voice) Aisling BeaCaptain Beatrix (voice) Troy BakerCaptain Grime (voice) Kevin Michael RichardsonMr. Flour (voice) Katie CrownIvy Sundew (voice) Zeno RobinsonAdditional Voices (voice) Kevin McDonaldAlbus Duckweed (voice) Jill BartlettMaddie Flour (voice) April WinchellFens (voice) Whoopi GoldbergMother Olm (voice) William HoustonKing Aldrich, The Core (voice) Chris SullivanTeddy (voice) Mona MarshallSylvia Sundew (voice) Mia AllanRosemary Flour (voice) James AdomianBuck Leatherleaf (voice) Fred TatascioreSoggy Joe (voice) Kristen JohnstonBraddock (voice) Paul EidingMonroe (voice) Scott MenvilleQuentin (voice) Jeff BergmanJonah (voice) Kari WahlgrenMartha (voice) Susanne BlakesleeValeriana (voice) Keith SilversteinBarry (voice) Tara LipinskiJudge 1 (voice) Johnny WeirJudge 2 (voice) Diedrich BaderFrog Jordan (voice) Matt BralyChuck (voice) / Sceneggiatore / Produttore Esecutivo Matt ChapmanTritonio Espada (voice) Tony HaleApothecary Gary (voice) Susan EganRenee Frodgers (voice) Max MittelmanFrancis (voice) Jenifer LewisMama Hasselback (voice) Keith FergusonJudro Hasselback (voice) Hugh BonnevilleWigbert (voice) Rebecca SugarBusker (voice) Brad GarrettRobert Otto (voice) Wallace ShawnHumphrey (voice) Kate MicucciTerri (voice) Cree SummerDr. Frakes (voice) Anika Noni RoseDr. Jan (voice) Cassandra Lee MorrisLeif (voice) Jason RitterBarrel (voice) Marlow BarkleyRosemary Flour (voice) Alex HirschThe Curator/Frog Soos (voice) Matt VogelCrumpet (voice) Julian EdwardsBailey (voice) Michele CavinSceneggiatore Todd McClintockSceneggiatore Matt BralyChuck (voice) / Sceneggiatore / Produttore Esecutivo Jack D. FerraioloSceneggiatore 
