Adam Scott as Tom

Toni Collette as Sarah

David Koechner as Howard

Allison Tolman as Linda

Conchata Ferrell as Aunt Dorothy

Emjay Anthony as Max

Stefania LaVie Owen as Beth

Krista Stadler as Omi

Lolo Owen as Stevie

Queenie Samuel as Jordan

Maverick Flack as Howie, Jr

Sage Hunefeld as Baby Chrissy

Leith Towers as Derek

Curtis Vowell as DHL Man

Luke Hawker as Krampus

Seth Green as Lumpy (voice)

Breehn Burns as Dumpy (voice)

Justin Roiland as Clumpy (voice)

Brett Beattie as Der Klown

Mark Atkin as Ketkrókur

Amy Brighton as Þvörusleikir

Trevor Bau as Hurðaskellir

Ravi Narayan as Kertasníkir

Felicity Hamill as Gáttaþefur

Sophie Gannon as Bjúgnakrækir

Kelly Lily Marie as Giljagaur

Clare Odell as Gluggagægir

Gareth Ruck as Stekkjarstaur

Ivy George as Perchta the Cherub (voice)

Collin Dean as Ruprecht the Elf (voice)

Pascal Ackerman as The Yule Goat

Skye Broberg as The Yule Goat

Jessie Carson as The Yule Goat

Gideon Emery as Krampus (voice) (uncredited)