Age: 25 years, 3 months
Place of Birth:
Regan was part of the Sligo Rovers U19 squad for the 2013/2014 season and was named in Ian Baraclough's first team squad ahead of the 2014 Premier Division season. He made his debut as a substitute in the EA Cup defeat to Derry City on 5 May 2014 and got his first league start under new manager John Coleman in the 2-0 win over Limerick FC on 27 July. He finished the season with 8 league appearances for Sligo in the 2014 Premier Division campaign.
Regan joined Finn Harps on loan in February 2015, with the deal lasting until June 2015. He made 10 league appearances there before returning to Sligo after his loan deal expired. He went on to make 13 league appearances for the Bit O'Red as Sligo finished ninth in the Premier 2015 Division. He had his best season to date in 2016 under new manager Dave Robertson and made 20 league appearances as Sligo finished fifth in the Premier Division.
In October 2016 Regan signed a new two-year deal at Sligo Rovers. Regan re-signed with Sligo Rovers for the 2019 season.
In February 2021, Regan re-signed with Sligo Rovers.