Langlois was born in Sainte-Marthe-de-Gaspé, Quebec and was educated at Collège Notre-Dame-des-Champs. He was elected in the 1988 federal election at the Manicouagan electoral district for the Progressive Conservative Party.
Langlois hails from Sainte-Marthe-de-Gaspé, Quebec and studied at Collège Notre-Dame-des-Champs. In the 1988 federal election, he was elected to represent the Manicouagan electoral district for the Progressive Conservative Party.