Max Davies (born: July 13, 1999 [age 27]), also known as Terrier55Stepney, t55Stepney or T55S online is an English YouTuber who mainly uploads films, vlogs and tutorials, he also has made stop-motion animations for the Bluebell Railway and YouTube. He was also a competitor as part of The Railway Children team in the first series of the TV show The Great Model Railway Challenge.