Seamus Casey

Growing up in Florida before moving to Detroit at age twelve, Seamus Casey’s path to higher-level hockey began early. His family relocated to Fort Myers when he was about five, where he met long-time teammate Gavin Brindley; the two would later play together in youth, junior and college ranks. At 12 Casey shifted to Detroit to join Compuware’s AAA program, a move that put him on the radar of major programs.

While with Compuware he drew the attention of the University of Michigan after an outing in which he slid up to forward; he committed to Michigan in October 2018. Although Sarnia selected him in the OHL draft, Casey opted for the USA Hockey NTDP to protect his NCAA status. His NTDP seasons were productive: 36 points (28 assists) in 48 games for the U17s and 33 points in 48 games with the U18s, performances that placed him among the top American draft-eligible juniors and earned an invitation to the USA Hockey All-American Game.

Casey honoured his college commitment and joined Michigan for 2022–23 alongside other Devils draftees, posting 29 points in 37 games and even appearing at center in an exhibition where he had two goals and an assist. In 2023–24 his sophomore numbers jumped to 7 goals and 45 points in 39 games; he received All-Big Ten First Team and First Team All-American honours, and Michigan repeated as Big Ten champions though the team fell in the Frozen Four semifinals.

New Jersey picked him 46th overall in the 2022 NHL Draft, and he signed a three-year entry-level deal on May 6, 2024. Casey earned a spot on the Devils’ opening roster for 2024–25, travelling to Prague for the NHL Global Series. He made his NHL debut on October 4, 2024, scored his first NHL goal the next day on the power play, and shortly after recorded his first assist and his first game-winning goal in the same match.

Internationally, Casey had six points in six games at the 2022 IIHF U18 Championship. He travelled with Team USA to the 2023 World Junior Championship but did not dress; in 2024 he was on the roster and collected six assists in six games on the way to a gold medal, missing one game due to illness. His game is marked by smooth mobility, playmaking from the blue line and a willingness to activate on the power play.