Ruth Gilligan was born in 1988 in Blackrock, County Dublin, Ireland. She is an actress, known for Fair City (1988), Tubridy Tonight (2004) and Seoige and O'Shea (2006).
She got 8 A1s in her Leaving Certificate examination in June 2006 at St. Andrew's College, Booterstown, Co. Dublin and was accepted to study English at Cambridge University in September 2006.
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She was a member of the Betty Ann Norton Theatre School in Dun Laoghaire, Co. Dublin for nearly 12 years.