Professor Susan Duncan is a fictional character portrayed by Rosemary Dunsmore in the TV series Orphan Black.
In the first episode they appeared in, titled Ruthless in Purpose, and Insidious in Method (season 3), they were 61 years old.
They appear in 14 episodes out of a total of 50 aired and have accumulated 1964 positive votes.
The character of Professor Susan Duncan is mainly associated with Sarah Manning, Mark Rollins and P.T. Westmorland.
Episodes14
Ruthless in Purpose, and Insidious in Method
episode S3.E8 june 2015When Rachel makes a promise to Sarah, it comes with a hefty price. Meanwhile, Helena and Gracie work with the Hendrixes, and Donnie takes Kellerman to task. Over at Castor, Coady and Benchman scheme to track down the Castor Original, and Rudy descends on DYAD for a much needed asset.- 45min
History Yet to Be Written
episode S3.E10 june 2015As Clone Club races towards the truth, Castor and Topside force Sarah to make uneasy alliances. Meanwhile, Kendall may be the key to stop Castor; the sisters appear to be thwarting their most dangerous foe.- 45min
Transgressive Border Crossing
episode S4.E2 april 2016After evading a Neolution attack in Iceland, Sarah returns home to track down an elusive new ally. As Cosima struggles with Delphine’s disappearance, Alison and Donnie host a pregnant and ever-hungry Helena. Meanwhile Felix, feeling like an outsider, embarks on his own journey of self-discovery.- 45min
The Stigmata of Progress
episode S4.E3 april 2016As Sarah reels from the shocking discovery of Neolution’s biotech, she’s desperate to find answers. Rachel receives a visit from her keeper and takes a fraught step forward towards recovery. Meanwhile, Helena is mistaken for “Mrs. Hendrix” when she answers a visit from suspicious visitors.- 45min
From Instinct to Rational Control
episode S4.E4 may 2016Sarah forms an alliance with a former enemy in hopes of getting to the head of Neolution. Elsewhere, Allison orders Felix and Donnie to invade a Neolution fertility clinic and Susan Duncan leaves Rachel to make a devastating decision.- 45min
Human Raw Material
episode S4.E5 may 2016Sarah’s day off to reconnect with Kira quickly turns into a sleuthing mission aimed squarely at discrediting Felix’s new ties. Cosima steps up with Donnie to further investigate the Neolutionist fertility research center. While Donnie bumps into an all too familiar face, Cosima makes a shocking discovery that leads her into a dangerous encounter.- 45min
The Scandal of Altruism
episode S4.E6 may 2016When Cosima admits doubts about finding a cure in time to save her life, Sarah makes a lone decision that exposes Kendall to those she’s spent years hiding from. Meanwhile, Art and Felix team up to protect naïve clone, Krystal Godderitch, from herself.- 45min
The Antisocialism of Sex
episode S4.E7 may 2016Sarah regresses back to old habits while struggling to cope with the consequences of her decisions — reconnecting with Beth on a dark night of the soul. Back at the lab, Cosima, haunted by vicious memories and news of Delphine, attempts a dangerous Hail Mary to find a cure. At the Hendrixes, Alison is more determined than ever to create normalcy for her kids. As she forges ahead with a birthday party, Donnie is caught in the Neolution crosshairs.- 45min
The Redesign of Natural Objects
episode S4.E8 june 2016As Alison is terrified by Neolution threats made against Donnie, Sarah and Mrs. S question her loyalty to her sisters. While Sarah is distracted, Siobhan sneaks out to seek vengeance. Meanwhile, Cosima and Susan Duncan work together in a final attempt to discover a cure.- 45min
The Mitigation of Competition
episode S4.E9 june 2016With Susan Duncan deposed, Sarah finds herself in the same position as Rachel — under the heel of a new HBIC — causing the archenemies to come together for the greater good. Cosima and Susan butt heads on the ethical implications of human experiments. Meanwhile, when the Hendrixes' legal counsel, Adele, further investigates Donnie’s case, she begins to suspect Felix is keeping deep secrets. Helena’s arrival forces Felix to make a difficult decision.- 45min
From Dancing Mice to Psychopaths
episode S4.E10 june 2016When communication with Cosima is cut off and Neolution appears to be within striking distance, Sarah’s alliance with Rachel goes out the window. Sarah lures a high-level Neolutionist into a trap, and sets out to bring down Neolution once and for all.- 45min
Let the Children and Childbearers Toil
episode S5.E4 july 2017Following up on intel from a mysterious source, Mrs. S heads on the road with Sarah to investigate a lead on a Neolution defector. Meanwhile, an unexpected reunion takes place on the island, while Cosima's research leads her to a terrible discovery.- 45min
Ease for Idle Millionaires
episode S5.E5 july 2017While Sarah and Kira spend some well-needed bonding time at home, secrets are unlocked about Kira's special gifts that are surprisingly linked to the island's creature. Meanwhile, Cosima joins Delphine at the mansion for a twisted family dinner.- 45min
Manacled Slim Wrists
episode S5.E6 july 2017Cosima is forced into an alliance with Susan Duncan when an old enemy returns to the island, accelerating P.T. Westmorland's sinister agenda. Meanwhile, Krystal stumbles onto a vital clue to the Neolution endgame.- 45min
- Ruthless in Purpose, and Insidious in Method
- History Yet to Be Written
- Transgressive Border Crossing
- The Stigmata of Progress
- From Instinct to Rational Control
- Human Raw Material
- The Scandal of Altruism
- The Antisocialism of Sex
- The Redesign of Natural Objects
- The Mitigation of Competition
- From Dancing Mice to Psychopaths
- Let the Children and Childbearers Toil
- Ease for Idle Millionaires
- Manacled Slim Wrists
Best moments6
- Cosima is forced into an alliance with Susan Duncan when an old enemy returns to the island, accelerating P.T. Westmorland's sinister agenda. Meanwhile, Krystal stumbles onto a vital clue to the Neolution endgame.
- 45min
- As Clone Club races towards the truth, Castor and Topside force Sarah to make uneasy alliances. Meanwhile, Kendall may be the key to stop Castor; the sisters appear to be thwarting their most dangerous foe.
- 45min
- Sarah’s day off to reconnect with Kira quickly turns into a sleuthing mission aimed squarely at discrediting Felix’s new ties. Cosima steps up with Donnie to further investigate the Neolutionist fertility research center. While Donnie bumps into an all too familiar face, Cosima makes a shocking discovery that leads her into a dangerous encounter.
- 45min
- When Cosima admits doubts about finding a cure in time to save her life, Sarah makes a lone decision that exposes Kendall to those she’s spent years hiding from. Meanwhile, Art and Felix team up to protect naïve clone, Krystal Godderitch, from herself.
- 45min
- Sarah regresses back to old habits while struggling to cope with the consequences of her decisions — reconnecting with Beth on a dark night of the soul. Back at the lab, Cosima, haunted by vicious memories and news of Delphine, attempts a dangerous Hail Mary to find a cure. At the Hendrixes, Alison is more determined than ever to create normalcy for her kids. As she forges ahead with a birthday party, Donnie is caught in the Neolution crosshairs.
- 45min
- As Alison is terrified by Neolution threats made against Donnie, Sarah and Mrs. S question her loyalty to her sisters. While Sarah is distracted, Siobhan sneaks out to seek vengeance. Meanwhile, Cosima and Susan Duncan work together in a final attempt to discover a cure.
- 45min
- Manacled Slim Wrists
- History Yet to Be Written
- Human Raw Material
- The Scandal of Altruism
- The Antisocialism of Sex
- The Redesign of Natural Objects