Nick Frost (AKA Saint Nicholas, Santa Claus, Father Christmas, whatever other names people call him.) Is an British actor who works alongside The Editor played by Simon Pegg. He has gone on many adventures with the Doctor under his true persona of Santa Claus to stop Ebenezer Scrooge from killing Christmas, stop Satan from ruining Christmas and to stop brain eating Facehugger ripoffs from killing the world. Sadly, his Santa career and his acting career came to an end during a zombie apocalypse when Simon Pegg threw him into a horde, later chaining him up to play video games for an eternity. Lucky bugger.
He sees you when you're sleeping.
He knows when you're awake.