Career
Gauthier was drafted by Val-d"Or Foreurs in the 1st round (6th overall) of the 2013 QMJHL Entry Draft, and has played with Val-d"Or since the 2013-2014 QMJHL season. On December 1st, 2015, Gauthier was invited to the Team Canada selection camp for the 2016 World Junior Hockey Championships. He was the only draft-eligible player to end up participating in the tournament for Canada.
He is the nephew of former National Hockey League player Denis Gauthier.