1. Louie McCarthy-Scarsbrook has played for both England and Ireland at international level.

1. Louie McCarthy-Scarsbrook has played for both England and Ireland at international level.
Louie McCarthy-Scarsbrook came through the London Broncos academy, but only played for the first team when it was named Harlequins RL in the Super League.
Louie McCarthy-Scarsbrook won the 2021 Challenge Cup with St Helens.
Louie McCarthy-Scarsbrook grew up on the Isle of Dogs, and was educated at St Joseph's Academy, Blackheath.
Louie McCarthy-Scarsbrook played football as a goalkeeper during his youth, but was persuaded by one of his schoolteachers to try rugby league.
Louie McCarthy-Scarsbrook played for Greenwich Admirals before joining London Broncos Academy ranks in 2004.
Louie McCarthy-Scarsbrook was a product of the Harlequins RL Junior Academy squad.
Louie McCarthy-Scarsbrook toured Australia with British Amateur Rugby League Association U18s in 2004.
Louie McCarthy-Scarsbrook spent the 2005 season on loan at Hull FC's Senior Academy, and played a prominent role in Hull's reserve grade Grand Final winning season.
Louie McCarthy-Scarsbrook returned to London and in 2006 made his Super League debut.
Louie McCarthy-Scarsbrook was named in the England training squad for the 2008 Rugby League World Cup.
Louie McCarthy-Scarsbrook was named in the England team to face Wales at the Keepmoat Stadium, Doncaster prior to England's departure for the 2008 Rugby League World Cup.
Louie McCarthy-Scarsbrook announced on 1 September 2010 that he was to leave Quins at the end of the season after turning down a new contract.
Louie McCarthy-Scarsbrook played in the 2011 Super League Grand Final defeat by the Leeds Rhinos at Old Trafford.
In 2014, Louie McCarthy-Scarsbrook made his 100th appearance for St Helens in their Challenge Cup fixture against Leeds.
Louie McCarthy-Scarsbrook played in the 2019 Challenge Cup Final defeat by the Warrington Wolves at Wembley Stadium.
Louie McCarthy-Scarsbrook played in the 2019 Super League Grand Final victory over the Salford Red Devils at Old Trafford.
Louie McCarthy-Scarsbrook played in St Helens 2020 Super League Grand Final victory over Wigan at the Kingston Communications Stadium in Hull.
Louie McCarthy-Scarsbrook played for St Helens in their 2021 Challenge Cup Final victory over Castleford.
On 20 September 2023, Louie McCarthy-Scarsbrook announced he would be retiring from rugby league.
Louie McCarthy-Scarsbrook played 26 games for St Helens in the 2023 Super League season as the club finished third on the table.
Louie McCarthy-Scarsbrook played in St Helens narrow loss against the Catalans Dragons in the semi-final which stopped them reaching a fifth successive grand final.
Louie McCarthy-Scarsbrook made his England debut in the victory over Wales on 10 October 2008.
Louie McCarthy-Scarsbrook later switched allegiance to Ireland, and was named in their 2017 Rugby League World Cup squad.