What character did Maria Doyle Kenndy play in the Canadian science fiction thriller television series?
Siobhán Sadler
Title: List of Helix episodes
Passage: "Helix" is an American science fiction thriller television series that premiered on Syfy on January 10, 2014.  The series follows a team of scientists from the Centers for Disease Control and Prevention who travel to a research facility in the Arctic to investigate a potential outbreak of disease.  While there, they find themselves stuck in a life-or-death situation that could decide the future of mankind.
Title: Maria Doyle Kennedy
Passage: Maria Josephine Doyle Kennedy (born 25 September 1964) is an Irish singer-songwriter and actress.  With a singing career that has spanned nearly thirty years and an acting career that has spanned twenty five, she has established herself as one of Ireland's most prolific artists and entertainers.  As an actress, she is best known for her extensive television roles as Patsy on "Father Ted" (1998), Catherine of Aragon on "The Tudors" (2007–2010), Vera Bates on "Downton Abbey" (2011), and Siobhán Sadler on "Orphan Black" (2013–2017).  As a musician, she is well known for her world wide hit folk albums "Mütter" and "Sing", as well as for releasing two albums between 1989-92 as part of The Black Velvet Band.
Title: Orphan Black
Passage: Orphan Black is a Canadian science fiction thriller television series created by screenwriter Graeme Manson and director John Fawcett, starring Tatiana Maslany as several identical people who are clones.  The series focuses on Sarah Manning, a woman who assumes the identity of one of her fellow clones, Elizabeth Childs, after witnessing Childs' suicide.  The series raises issues about the moral and ethical implications of human cloning, and its effect on issues of personal identity.
Orphan Black Maria Doyle Kennedy