Matthew Whelan

as Niko (voice)

Emma Jenkins

as Stella (voice)

Paul Tylak

as Prancer / Cupid / Siigur / Leo Lemming / Lasse Lemming / Lemmings (voice)

Roger Gregg

as Einar / Dasher (voice)

Dermot Magennis

as Julius & Ilmar (voice)

Aileen Mythen

as Wilma / Olga / Lemmings (voice)

Lucy Smith

as Lilli (voice)

Harry Weld-Moore

as Jonni (voice)

Justin Daniels Anene

as Morten (voice)

Brenda McDonald

as Blitzen / Donner / Nillá (voice)

Mary Murray

as Ilda / Lala Lemming (voice)

Susan Slott

as Oona (voice)

Luke Griffin

as Comet / Dancer / Gusto / Vixen (voice)

Michael Sheehan

as Lenni (voice)

Cameron Simpson

as Young Prancer (voice)

Evan O'Connor

as Young Ilmar (voice)

Michelle Read

as Leif / Lilly Lemming (voice)

Olivia Caffrey

as Lalli Lemming (voice)

Doireann Ní Chorragáin

as Lemming (voice)

Maggie Cadwell

as Lemming (voice)

Garry Mountaine

as Santa Clause