Oisín Stack was born to an Irish father and French mother and he was brought up by his mother in Arklow, County Wicklow. At the age of 11, they moved to Bordeaux and 18-months later, to Chichester in the UK. Stack followed his vocation as an actor at an early age and earned a place at the Paris Conservatoire. His early acting career was based mainly in France, Spain and Chile and he appeared in the French crime comedy film “The Family” in 2013, as well as the 2014 remake of “Rosemary’s Baby” and the a Russian production of “Mata Hari”. Oisín was signed to a UK/Irish Agent and a few months later in March 2016 and he was cast in the EastEnders spin-off series “Kat & Alfie: Redwater”; the premise of which surrounded his character role of Dermott Dolan, as Kat Slater’s long lost son.
As of 2019, Oisín is continuing his acting career in both film, television and the theatre, whilst also finding success in his writing.