Regan started playing rugby underage at
Birr RFC in County Offaly and was part of the
Leinster under-age set up.
Ulster Regan made his senior competitive debut for
Ulster in their 54–42 defeat against
Leinster in the
2018–19 Pro14 on 20 December 2019, coming on as a replacement in this match. In March 2020 he was released by Ulster.
Otago Regan moved to New Zealand where he joined the Dunedin Sharks and was subsequently signed by
Otago. He made his debut in Round 1 of the
2020 season against
Auckland at
Forsyth Barr Stadium.
Highlanders In February 2021 Regan was called into the
Highlanders squad as injury cover for some pre-season games. Regan made his Super Rugby debut for the Highlanders on 26 February in a 13–26 defeat to the Crusaders. He made his second appearance in the Highlanders first win of the season against the Chiefs in Hamilton. ==References==