Tom KennyDog / Cliff (voice) Dwight SchultzEddie the Squirrel (voice) Carlos AlazraquiWinslow / Lube (voice) Maria BamfordShriek (voice) Billy WestRancid Rabbit (voice) John KassirDunglap / Mervis (voice) Nika FuttermanLola (voice) Laraine NewmanIngrid Twins (voice) Peter HannanBalloon Guy (voice) / Theme Song Performance / Storia Dave ThomasMean Bob (voice) Rob PaulsenStanky (voice) April WinchellSpace Grannies (voice) Dee Dee GreeneMaggie (voice) Brian Doyle-MurraySanta Claus Greg BursonBarry the Baboon (voice) Rodger BumpassPig / Man (voice) Jane KrakowskiCatDog's Mother (voice) Billy Bob ThorntonCatDog's Father (voice) Julianne BuescherCatrina (voice) Andrea MartinTalluhla / Indian (voice) Gail MatthiusFeline (voice) Tom KaneEvil Eric (voice) Kath SoucieLorraine (voice) Edie McClurgMrs. Grock (voice) Peter MacNicolRunt (voice) Teresa ParenteMaria Cowess / Mrs. Banks (voice) Cole HannanCat Fanatic (voice) Ruby HannanCat Fanatic (voice) Robert PorterRegista / Sceneggiatore Derek DrymonRegista / Sceneggiatore Marlene Robinson MayRegista Gary McCarverRegista / Animation Director Steven BanksSceneggiatore Andy RheingoldSceneggiatore Andrew GottliebSceneggiatore Ben MontanioSceneggiatore Robert LamoreauxSceneggiatore Vince CheungSceneggiatore Dan PovenmireSceneggiatore Casper KellySceneggiatore Patricia CarrSceneggiatore Lance KhazeiSceneggiatore Michael KarnowSceneggiatore Julia Jane LewaldSceneggiatore Frank SantopadreSceneggiatore Sydnie SuskindSceneggiatore Magda LiolisSceneggiatore Scott SonnebornSceneggiatore Chris GilliganSceneggiatore Antoine GuilbaudSceneggiatore Mario PilusoSceneggiatore Rick RodgersSceneggiatore Rachel PowellSceneggiatore Barry StringfellowSceneggiatore Wendy ReardonSceneggiatore Peter HannanBalloon Guy (voice) / Theme Song Performance / Storia 
