Kerlow

Kernow was one of two male crew members and scientist of a blue skinned alien race who, along with Selby, in a quest to understand the primitive festival of Christmas that they had heard of, became trapped in the village of Stillmuir when it was shrunk and transported onboard their ship. Unharmed he experienced Christmas first hand as a guest of Heather McCrimmon’s grandmother along with her two other companions.

(DWA:A Merry Little Christmas)