Alan Terigo was a pseudonym that played on the word "alter-ego" used by Nev Fountain for the audio story Blood on Santa's Claw which was the first in the anthology Blood on Santa's Claw and Other Stories. The decision was made to use pseudonyms for the first three stories in the anthology to give the impression that it was a regular anthology with four standalone stories when in fact they were connected by a retroactive plot twist explained in the final episode, Brightly Shone The Moon That Night. (BFX: Blood on Santa's Claw and Other Stories)