 Lorne GreeneGrandfather (voice) | Grandfather (voice) |
 Sammy Davis Jr.Head Ratte (voice) | Head Ratte (voice) |
| MMargery GreyHeidi (voice) | Heidi (voice) |
 Pamelyn FerdinKlara (voice) | Klara (voice) |
 Michael BellWillie (voice) | Willie (voice) |
 Peter CullenGruffle (voice) | Gruffle (voice) |
| RRoger DeWittPeter (voice) | Peter (voice) |
 Richard ErdmanHerr Sessman (voice) | Herr Sessman (voice) |
 Fritz FeldSebastian (voice) | Sebastian (voice) |
 Joan GerberFräulein Rottenmeier (voice) | Fräulein Rottenmeier (voice) |
 Virginia GreggAunt Dete (voice) | Aunt Dete (voice) |
 Janet WaldoTinette (voice) | Tinette (voice) |
 Frank WelkerSchnoddle/Hootie (voice) | Schnoddle/Hootie (voice) |
 Michael WinslowMountain (voice) | Mountain (voice) |
| SSue AllenChorus (voice) | Chorus (voice) |
| BB.J. BakerChorus (voice) | Chorus (voice) |
| JJohn Richard BolksChorus (voice) | Chorus (voice) |
| EEvangeline CarmichaelChorus (voice) | Chorus (voice) |
| BBill ColeChorus (voice) | Chorus (voice) |
| PPaul DeKorteChorus (voice) | Chorus (voice) |
| SSandie HallChorus (voice) | Chorus (voice) |
| WWalter S. HarrahChorus (voice) | Chorus (voice) |
| RRonald HarrisChorus (voice) | Chorus (voice) |
| DDarlene LawrenceChorus (voice) | Chorus (voice) |
| DDouglas LawrenceChorus (voice) | Chorus (voice) |
| SShara Lee LucasChorus (voice) | Chorus (voice) |
| IIda Sue McCuneChorus (voice) | Chorus (voice) |
| GGene MerlinoChorus (voice) | Chorus (voice) |
| LLoulie Jean NormanChorus (voice) | Chorus (voice) |
| MMarilyn PowellChorus (voice) | Chorus (voice) |
