Montreal Canadiens
Hunter made the NHL as an 18-year-old with the Montreal Canadiens for the 1981–82 season. In 71 games with the Canadiens, Hunter had 18 goals and 29 points, while finishing second on the team with 143 penalty minutes, helping Montreal into the playoffs. In five playoff games against the Quebec Nordiques, Hunter had no points and 20 penalty minutes as the Canadiens lost to their provincial rivals.
Hunter appeared in only 31 games for the Canadiens during the 1982–83 season, scoring eight goals and 16 points, while accumulating 73 penalty minutes. He suffered a season ending knee injury on December 26, 1982 in a game against the Quebec Nordiques.
Hunter had another injury plagued season in 1983–84, playing in 22 games, scoring six goals and 10 points. Hunter was healthy for the playoffs, where he scored two goals and three points in 14 games, helping the Canadiens reach the Wales Conference finals, where they lost to the New York Islanders.
He was healthy during the 1984–85 season, as Hunter played in 72 games, scoring 21 goals and 33 points, while getting 123 penalty minutes, the second highest total on the team. In the playoffs, Hunter had three assists in 11 games, however, Montreal lost to the Quebec Nordiques in the Adams Division finals.
On June 15, 1985, the Canadiens traded Hunter, Mike Dark, and their second, third, fifth and sixth round draft picks in the 1985 NHL entry draft to the St. Louis Blues for the Blues first, second, fourth, fifth and sixth round draft picks in the 1985 NHL entry draft.