Oliver Claffey

is an English professional wrestler and mixed martial artist. He is currently signed to WWE, where he performs on the Raw brand under the ring name Gentleman Jack Gallagher. He is perhaps best known for his appearances at Futureshock Wrestling and Grand Pro Wrestling, where he has won the FSW Championship and GPW British Championship. He is also an accomplished tag team competitor, winning the Futureshock Tag Team Championship with Alex Cyanide as Lethal Dose. Gallagher was trained by Alex Shane and the Futureshock staff. He made his professional wrestling debut at the age of 16 on 4 November 2006 at Futureshock #11, under the ring name Jack Toxic, teaming up with Alex Cyanide, Danny Hope, and Kris Travis. They defeated El Ligero, Charity, Faith, and Jamal Lewis. He also trained in Grappling, a catch wrestling style, under Billy Robinson at the Snake Pit in Wigan, Greater Manchester.