Simon Phillips is an Irish actor born in Tuam, County Galway, working mainly in independent British films. He has appeared in films such as How to Stop Being a Loser, Jack Falls, and The Rise and Fall of a White Collar Hooligan. Simon is an award-winning British actor, probably best known for the popular Amazon Prime TV shows Age of the Living Dead and No Easy Days, as well as the Rise and Fall of a White Collar Hooligan trilogy, which features the films. He has also been cited and received awards for his terrifying portrayal of Santa Claus in the Christmas horror films Once Upon a Christmas and Twas the Night Before Christmas.

His 2021 feature film The Butchers received high praise from The Guardian Newspaper, which said: "It is Phillips's performance that keeps the film's pulse. a music box, looking at his oblivious prey, then he will bloodily strike his victim, channeling a kind of biblical righteousness that makes him slippery, thrilling and, most importantly, terrifying to watch."