Steffanie Rhiannon Newell (born 15 November 1994) is a Welsh professional wrestler. She is signed to WWE and appears on their NXT brand under the ring name Tegan Nox but is currently inactive due to a torn ACL injury. Newell previously wrestled on the British independent circuit under the ring name Nixon Newell, most notably for promotions such as Attack! Pro Wrestling, Progress Wrestling, What Culture Pro Wrestling, and Fight Club: Pro.