2010-11: Cole Cassels played for the Ohio Blue Jackets U16 team midget team. He scored 11 goals with 23 assists in 37 games and had 61 penalty minutes. He was selected by Oshawa in the first round (16th overall) of the 2011 OHL Priority Draft and drafted in the third round (45th overall) by Muskegon in the 2011 USHL Futures Draft.
2011-12: Cassels skated in 64 games for Oshawa in his first OHL season and played for Canada Ontario in the 2012 U17 World Hockey Challenge. He scored 3 goals with 8 assists and was +1 with 31 penalty minutes with the Generals. Oshawa was third in the East Division. In the six-game playoff series against Niagara he scored 1 goal and was an even plus/minus with 6 penalty minutes. Cassels scored 1 goal with 2 assists and had 6 penalty minutes in six games at the WHC.
2012-13: Cassels returned to Oshawa for his second season and skated in the inaugural CCM All-American Prospects Game. He scored 15 goals with 28 assists and in 64 games for the Generals and was +7 with 61 penalty minutes. Oshawa was second in the East Division and reached the second round in the playoffs. In nine playoff games Cassels scored 1 goal and was -2 with 14 penalty minutes. He was ranked 120th amongst North American skaters in Central Scouting's final rankings and was selected by Vancouver in the third round (85th overall) of the 2013 NHL Draft.
While he may not be the flashiest player in the Canucks prospect system, his two way, defense-oriented game has a certain luster. Still a few years away, Cassels has proven he can be thrust into a number of different situations with success. Above-average in the faceoff circle, responsible on the penalty kill, and he is a solid shot-blocker. Though somewhat slight of frame, he hits regularly. He has a pass-first mentality (much like his father, Andrew, did) and that is demonstrated in his assist statistics. There are differing opinions on his offensive upside.
It is expected that Cassels will return to the Oshawa Generals for his third season with the club. There, he will be able to further refine his game, which has a definite defense-first aura surrounding it. But make no mistake, Cassels can target teammates with the puck and find them, as well. There should be ample opportunity and ice time for Cassels to continue improving his game, with his goal ultimately to earn a pro contract and move up to the AHL.