Bret Sergeant Hart is a Canadian-American retired professional wrestler, amateur wrestler, writer and actor. A member of the Hart wrestling family and a second-generation wrestler, he has an amateur wrestling background, wrestling at Ernest Manning High School and Mount Royal College. A major international draw within professional wrestling, he has been credited with changing the perception of mainstream North-American professional wrestling in the early 1990s by bringing technical in-ring performance to the fore. Hart is widely regarded as one of the greatest professional wrestlers of all time; Sky Sports noted that his legacy is that of "one of, if not the greatest, to have ever graced the squared circle". For most of his career, he used the nickname, "Hitman".