He played 830 career NHL games, scoring 261 goals and 351 assists for 612 points.

[3] On July 28, 2015, King was named assistant coach of the Owen Sound Attack of the Ontario Hockey League.

[7] King was named the permanent head coach of the IceHogs at the end of the 2018–19 season.

[8] On November 6, 2021, King was named interim head coach of the Chicago Blackhawks of the National Hockey League to replace the dismissed Colliton, who led the team to a 1–9–2 start to the 2021–22 season.

[10] On June 27, 2022, King was replaced as head coach of the Blackhawks by former Montreal Canadiens assistant and longtime NHL defenseman Luke Richardson, but rehired 14 days later as an assistant coach.