| MMatthew WhelanNiko (voice) | Niko (voice) |
| EEmma JenkinsStella (voice) | Stella (voice) |
 Paul TylakPrancer / Cupid / Siigur / Leo Lemming / Lasse Lemming / Lemmings (voice) | Prancer / Cupid / Siigur / Leo Lemming / Lasse Lemming / Lemmings (voice) |
| RRoger GreggEinar / Dasher (voice) | Einar / Dasher (voice) |
 Dermot MagennisJulius & Ilmar (voice) | Julius & Ilmar (voice) |
 Aileen MythenWilma / Olga / Lemmings (voice) | Wilma / Olga / Lemmings (voice) |
| LLucy SmithLilli (voice) | Lilli (voice) |
| HHarry Weld-MooreJonni (voice) | Jonni (voice) |
 Justin Daniels AneneMorten (voice) | Morten (voice) |
 Brenda McDonaldBlitzen / Donner / Nillá (voice) | Blitzen / Donner / Nillá (voice) |
 Mary MurrayIlda / Lala Lemming (voice) | Ilda / Lala Lemming (voice) |
| SSusan SlottOona (voice) | Oona (voice) |
 Luke GriffinComet / Dancer / Gusto / Vixen (voice) | Comet / Dancer / Gusto / Vixen (voice) |
| MMichael SheehanLenni (voice) | Lenni (voice) |
| CCameron SimpsonYoung Prancer (voice) | Young Prancer (voice) |
 Evan O'ConnorYoung Ilmar (voice) | Young Ilmar (voice) |
| MMichelle ReadLeif / Lilly Lemming (voice) | Leif / Lilly Lemming (voice) |
| OOlivia CaffreyLalli Lemming (voice) | Lalli Lemming (voice) |
| DDoireann Ní ChorragáinLemming (voice) | Lemming (voice) |
| MMaggie CadwellLemming (voice) | Lemming (voice) |
 Garry MountaineSanta Clause | Santa Clause |
