Siobhán is an Irish actress. Her name in Irish is Siobhán Nic Suibhne. She grew up in Cork, which is situated in the south of Ireland. She attended a private girls school in Cork City Centre called Scoil Mhuire. The actress Fiona Shaw, who stars in Killing Eve also attended this school. She graduated from Scoil Mhuire (St. Mary's School) in 1996.