Born in Magog, Quebec, Langlois played junior in the provincial capital with the Citadelles and Frontenacs. He was a solid senior competitor on the Shawinigan Cataracts and was named to the QHL's second all-star team in 1956. Langlois was then a useful worker on the AHL's Rochester Americans for a pair of seasons before earning full time work with the Montreal Canadiens in 1958-59.

The steady rearguard helped the Habs finish off the last two years of their five-Cup dynasty in 1959 and 1960. As a member of the defending champions, he also participated in two All-Star Games. Following the 1960-61 season, he was traded to the New York Rangers for John Hanna.

Langlois continued to run into bodies with the Rangers and also played a bit more on offense. Late in the 1963-64 season, he joined the Detroit Red Wings and helped the club reach the Stanley Cup finals with his solid work behind the blueline. In 1965-66, he played one last NHL season as a veteran presence on the Boston Bruins' defence the year before Bobby Orr arrived. Langlois retired in 1967 after scoring 40 points and delivering many hard hits for the WHL's Los Angeles Blades.

Courtesy of the Hockey Hall of Fame