Siobhan is the Irish foster mother of Felix and Sarah. She takes care of Sarah's daughter Kira when Sarah is not around.
Appearances
Orphan Black
Main cast, played by Maria Doyle Kennedy
- Episode 1x01: Natural Selection (Mar 30, 2013)
- Episode 1x02: Instinct (Apr 6, 2013)
- Episode 1x03: Variation Under Nature (Apr 13, 2013)
- Episode 1x04: Effects of External Conditions (Apr 20, 2013)
- Episode 1x05: Conditions of Existence (Apr 27, 2013)
- Episode 1x07: Parts Developed in an Unusual Manner (May 11, 2013)
- Episode 1x08: Entangled Bank (May 18, 2013)
- Episode 1x09: Unconscious Selection (May 25, 2013)
- Episode 1x10: Endless Forms Most Beautiful (Jun 1, 2013)
- Episode 2x02: Governed by Sound Reason and True Religion (Apr 26, 2014)
- Episode 2x04: Governed As It Were by Chance (May 10, 2014)
- Episode 2x06: To Hound Nature in Her Wanderings (May 24, 2014)
- Episode 2x07: Knowledge of Causes, and Secret Motion of Things (May 31, 2014)
- Episode 2x08: Variable and Full of Perturbation (Jun 7, 2014)
- Episode 2x09: Things Which Have Never Yet Been Done (Jun 14, 2014)
- Episode 2x10: By Means Which Have Never Yet Been Tried (Jun 21, 2014)
- Episode 3x01: The Weight of This Combination (Apr 18, 2015)
- Episode 3x02: Transitory Sacrifices of Crisis (Apr 25, 2015)
- Episode 3x05: Scarred by Many Past Frustrations (May 16, 2015)
- Episode 3x06: Certain Agony of the Battlefield (May 23, 2015)
- Episode 3x07: Community of Dreadful Fear and Hate (May 30, 2015)
- Episode 3x08: Ruthless in Purpose, and Insidious in Method (Jun 6, 2015)
- Episode 3x09: Insolvent Phantom of Tomorrow (Jun 13, 2015)
- Episode 3x10: History Yet to Be Written (Jun 20, 2015)
- Episode 4x02: Transgressive Border Crossing (Apr 21, 2016)
- Episode 4x03: The Stigmata of Progress (Apr 28, 2016)
- Episode 4x04: From Instinct to Rational Control (May 5, 2016)
- Episode 4x05: Human Raw Material (May 12, 2016)
- Episode 4x06: The Scandal of Altruism (May 19, 2016)
- Episode 4x07: The Antisocialism of Sex (May 26, 2016)
- Episode 4x08: The Redesign of Natural Objects (Jun 2, 2016)
- Episode 4x10: From Dancing Mice to Psychopaths (Jun 16, 2016)
- Episode 5x02: Clutch of Greed (Jun 17, 2017)
- Episode 5x03: Beneath Her Heart (Jun 24, 2017)
- Episode 5x04: Let the Children and Childbearers Toil (Jul 1, 2017)
- Episode 5x05: Ease for Idle Millionaires (Jul 8, 2017)
- Episode 5x06: Manacled Slim Wrists (Jul 15, 2017)
- Episode 5x07: Gag or Throttle (Jul 22, 2017)
- Episode 5x08: Guillotines Decide (Jul 29, 2017)
- Episode 5x10: To Right the Wrongs of Many (Aug 12, 2017)