2006-2007: Comrie began the year with the expansion Ohio Jr. Blue Jackets in the USHL before a mid-season trade to the Omaha Lancers. Comrie scored six goals in 19 games with Ohio but played a much more traditional defensive game with the Lanchers. In 57 games with the two teams, he scored 7 goals with 10 assists and was -12 (+8 with Omaha) and had 55 PIM.
2007-08: Comrie decided to pursue major junior rather than college hockey and played for Saginaw in the OHL. He proved to be both an offensive threat and a very physical player in his first season with the Spirit. Comrie finished with 10 goals and 18 assists and was +17 with 90 PIM in 58 games. Comrie's 28 points were third among OHL rookie defenseman. Comrie's play mirrored that of the Spirit in the first round of the playoffs as he finished -7 with no points in 4 games as Saginaw was swept by the Soo Greyhounds. Comrie, a dual citizen of Canada and the United States, was invited to the USA WJC evaluation camp in Lake Placid.
2008-09: Comrie rejoined Saginaw for his second OHL season after attending camp with the Panthers. Comrie's season featured some highlights and lowlights. Comrie put up decent numbers and was a defensive leader at times but he also drew an OHL suspension for firing a puck into the stands during a stoppage in play and also was benched by coach Todd Watson for his inconsistent play. In 52 games with the Spirit, he scored 9 goals with 21 assists and was +13 with 70 PIM. Saginaw, after finishing second in the West division during the regular season, swept Guelph in the first round of the playoffs but lost to London in four straight in the second round. Comrie finished even with 2 assists and 8 PIM in eight playoff games.
2009-10: Comrie's third season in the OHL was spent with Guelph after an off-season trade and he was the Storm's leading scorer amongst defensemen. Comrie scored 14 goals with 26 assists in 68 games with Guelph as the Storm finished third in the Midwest division. He was -6 for the season and had 79 PM. In the Storm's five-game first round playoff series loss to London, Comrie scored 1 goal with 2 assists and had an even plus/minus with 4 PIM. Comrie signed an entry level contract with Florida in April.
2010-11: Comrie spent his first pro season shuffling between Rochester (AHL) and ECHL Cincinnati. In six AHL call-ups, he had 5 assists and was -15 with 18 PMs in 44 games for Rochester. Playing for Cincinnati, he scored 4 goals with 4 assists and was +3 in 13 games. Two of his three goals for Cincinnati were scored on the power play.
Comrie was one of the larger blueliners in his draft class but was a raw talent who had played much of his youth hockey in Virginia prior to playing junior hockey. While his size and heavy shot, which he likes to use, first gained the attention of scouts, he has worked to refine the other areas of his game. Comrie is tough along the boards and in front of his own net. He plays with a lot of determination but must work to keep his emotions in check at times. Comrie is constantly engaged in the play and likes to be involved in the attack.
Comrie was signed to a one-year contract by the San Jose Sharks in July, 2013.