2004-05: Skated for the Junior Bruins of the EJHL. He was a major contributor to the team, helping the club capture the championship. Berry finished the year with 21 goals and 31 assists in 63 games. The Leafs picked him up with a fifth round selection. Alex is the son of former NHL coach Bob Berry.
2005-06: Berry saw limited action as a freshman at the University of Massachusetts due to a serious leg injury suffered on Nov. 11. Appeared in only 24 games on the season. He tallied 2 points (1g, 1a) and 33 penalty minutes.
2006-07: As a sophomore, he improved his overall stats, and appeared in 29 games for the Minutemen. He totaled 13 points (7g, 6a) and 34 penalty minutes, and finished out the season with a +5 rating.
2007-08: Junior year with UMass. He appeared in 34 games with the club, finishing with 17 points (10g+7a). He led the team in penalty minutes with 63, and had the sixth best shooting percentage on the team (.118) on 85 shots. He recorded four multi-point games and tallied two power play goals and another pair of shorthanded goals. He scored seven goals in his last nine games.
2008-09: Berry made his pro debut with the AHL Toronto Marlies following his senior year at Massachusetts. He was scoreless with an even plus/minus and 15 PMs in eight games with the Marlies. Berry skated in 37 games and was the third-leading scorer for Massachusetts; scoring 11 goals with 19 assists (both career-highs). Berry was +10 and had 83 PMs as the Minutemen finished seventh in Hockey East.
2009-10: Berry spent his first pro season with the Toronto Marlies and was also with the Reading Royals during their ECHL playoff run. Berry scored 3 goals with 4 assists and was -18 with 97 PMs in 55 games for the Marlies. He appeared in five regular season games for the Royals and was +2 with 5 assists and 5 PMs. He skated in all 16 playoff games as Reading advanced to the Eastern Conference finals and scored 2 goals with 4 assists and was +3 with 4 PMs.
2010-11: Berry was acquired by Tampa Bay along with Stefano Giliati in a trade for defenseman Matt Lashoff in August 2010 and spent the year with the Lightning’s AHL affiliate Norfolk. Berry skated in 75 of 80 games with the Admirals but missed the AHL playoffs due to injury. Berry was a team leader for Norfolk and was named 2011 AHL Man of the Year. He was third on the Admirals with 150 penalty minutes and was +7 with 14 goals and 20 assists. Berry was not offered a contract by Tampa Bay and became an unrestricted free agent in June 2011.