 He played Brondsted in the first episode of Michael Hirst's History Channel series "Vikings", starring Gabriel Byrne.McCarthy also played Rory Thompson in Samson Films' "Belonging to Laura", a modern-day adaptation of Oscar Wilde's "Lady Windermere's Fan" directed by Karl Golden, which was nominated for Best Single Drama at the IFTA Awards.McCarthy is known for his award-winning performance as Kris Fisher on the Channel 4 soap opera "Hollyoaks" from 2006 to 2010, for which he was nominated in the Best Newcomer category at the British Soap Awards and the National Television Awards.