Before he played in the NHL, Doyon played 3 seasons in the QMJHL with the Drummondville Voltigeurs. He was drafted #119 overall by the Chicago Blackhawks in the 1986 NHL Entry Draft. Doyon played 7 games with the Chicago Blackhawks and 22 games with the Quebec Nordiques. He last played for the Corpus Christi Rayz of the Central Hockey League. He has also played roller hockey with the Montreal Roadrunners of the Roller Hockey International.