Sylvain Cloutier was named the fifth head coach in Adirondack Thunder history on July 8, 2025, and enters his second season. He began his professional career with the Adirondack Red Wings in the 1993-94 season. The Mont-Laurier, Quebec native played 287 games with Adirondack and totaled 148 points (45g-103a) from 1993-98. The 52-year-old returned to Adirondack in 2003 and played three seasons with the Frostbite in the United Hockey League. During his playing career, Cloutier was drafted by the Detroit Red Wings in 1992 and played in seven NHL games with the Chicago Blackhawks during the 1998-1999 season. In 565 AHL games with Adirondack, Albany, Houston and Syracuse, Cloutier had 274 points (86g-186a). He also served as a captain and won a Calder Cup with Houston during the 2002-2003 season. Following his playing career, was inducted into the Adirondack Hockey Hall of Fame as part of the 2020 class. Cloutier got behind the bench during the 2008-09 season with the Corpus Christi IceRays in the Central Hockey League before heading overseas to coach the Hull Stingrays in the EIHL from 2009-14. Cloutier returned to Canada to be the head coach and general manager of the Essa Stallions in the CPJHL and led the Stallions to a 106-21-3 record over his three seasons as Head Coach and earned back-to-back CPJHL Championships in 2018 and 2019 while also collecting the 2017-18 regular season championship with a 42-2-0 record. Cloutier returned to Corpus Christi in the 2022-23 season and helped lead the IceRays to their best regular season in team history in the North American Hockey League with a 35-19-2-3 record.

Ben Holmstrom enters his second season with the Adirondack Thunder. He was named Associate Head Coach on July 8, 2025. He began his professional career in Glens Falls for the American Hockey League’s Adirondack Phantoms in the 2009-10 season. The 39-year-old served as the team’s captain from 2011-2014. In 256 regular-season games with the Phantoms, Holmstrom recorded 122 points (49g, 73a). The Colorado Springs, Colorado native appeared in seven National Hockey League games with the Philadelphia Flyers during his time in Adirondack. Following the 2013-14 season, Holmstrom served as the assistant captain for the Charlotte Checkers and totaled 20 points in 62 games. In 611 American Hockey League games with Adirondack, Charlotte, Bridgeport and Rochester, Holmstrom had 217 points (79g, 138a). From 2019-2022, Holmstrom played 89 ECHL games with Norfolk, Cincinnati and South Carolina and recorded 42 points (14g, 28a). Holmstrom’s coaching career began during the 2022-2023 season with the ECHL’s Orlando Solar Bears where he served as an assistant coach and helped lead them to a 105-82-29 regular season record and qualified for the Kelly Cup Playoffs the past two seasons. During the playoff stretch, Orlando went to the South Division Final both years and knocked out the Regular Season Champion, South Carolina Stingrays this past season.