Santa Claus

In many Earthen cultures, Santa Claus is a legendary figure who delivers gifts and spreads merriment on Christmas Day.

Of course, in BZPB, he is more than just a myth...

History
In 2010, Santa appeared in front of Klak, Nadle, Perseus, Praepositus, and Rahksha while they were looking for the Keruvim on Vizima. He wished them all a Merry Christmas and vanished as quickly as he appeared.

In 2012, Santa was seen travelling across the universe, hurling gifts at everyone and screaming "MERRY CHRISTMAS!" at the top of his lungs.

In 2014, Santa's arrival was heralded by an auspicious "Ho, ho, ho" off in the distance. When Ben Linus heard it, he assumed that someone had invaded his fortress, so he ordered Tomas to investigate the source of the chuckling. Tomas went into the room that the chuckling supposedly came from, but there was no intruder; just a bunch of presents under a Christmas tree. Santa then continued his journey across the universe, delivering gifts and spreading Christmas cheer.

In 2016, Santa appeared in a bonus chapter of The Mazkertis Paradox released on Christmas Day. He arrived in the middle of a Christmas feast with GregF by his side, who was dressed as an elf. Together they celebrated the holiday with The Users and every character from every incarnation of BZPB. When the party was over, Santa went home, to be seen again next year.