Brophy was a tough defenceman who played 18 seasons in the Eastern Hockey League, racking up nearly 4,000 career penalty minutes between 1955 and 1973—the most in EHL historyplaying parts of nine seasons with the Long Island Ducks and retiring at the age of 40. On August 5, 1967, Brophy was involved in a car crash. He survived but his passenger, Dorothea Schiavone, was killed. He had a part as a referee in a Schaefer Beer commercial which aired for about five years on various New York television stations.
Brophy then joined the Toronto Maple Leafs organization, first as an assistant coach with the Leafs, then briefly as head coach of the Leafs' AHL team, the St. Catharines Saints, and then as head coach of the Leafs for the 1986–87 season. The Leafs showed some promise during Brophy's first season as coach, despite finishing the year with a losing record, but it all went downhill from there with an embarrassing season in 1987–88. However, the Norris Division was so weak that year that the Leafs actually made the playoffs despite having the second-worst record in the league. Brophy feuded with general manager Gerry McNamara, who tried to have Brophy fired but ended up being fired himself. After an equally poor start to the 1988–89 season, and despite being a favorite of Leafs owner Harold Ballard, Brophy was fired in December 1988, 33 games into the season.
ECHL
Brophy then found a home in Norfolk, Virginia, with the Hampton Roads Admirals of the East Coast Hockey League. He coached the team for 11 seasons, from 1989 to 2000, winning the league championship in 1991, 1992, and 1998. The Admirals did not have a losing season with Brophy behind the bench. After a game in January 1999, a fight broke out on the ice, and fans were throwing batteries. Brophy was accused of assaulting two security guards, but the guards said they were trying to keep him away from the Roanoke fans. In the end, Brophy pleaded guilty, was fined $1,000, and suspended for six games. On June 25, 2000, Brophy was badly injured in a car accident near New Glasgow, Nova Scotia. He was listed in critical condition with a broken leg and a head injury. Brophy had fallen asleep at the wheel while driving. After a successful recuperation, Brophy returned to the ECHL in 2001 as coach of the Wheeling Nailers for two seasons and retired. The ECHL's coach of the year award was renamed the John Brophy Award in 2003. As of 2006, Brophy is the all-time leader among ECHL coaches in regular season wins, playoff games and playoff wins and was inducted into the ECHL Hall of Fame in 2009.
Recent coaching positions
In 2004–05, he coached his hometown junior team, the Antigonish Bulldogs of the Maritime Junior A Hockey League. For 2006–07, at age 73, he went back to Virginia as head coach of the Richmond Renegades of the Southern Professional Hockey League. As a professional hockey coach, Brophy has accumulated 1,027 victories, the second highest amount in all of professional hockey, behind only Scotty Bowman. After one season with the Richmond Renegades, it was announced that Brophy would be released from his contract. His replacement in Richmond was former team captain Brian Goudie.
Death
Brophy died in his sleep at his home in Antigonish on the morning of May 23, 2016, from a long illness, aged 83.