Orphan Black/Ipsa Scientia Potestas Est

Ipsa Scientia Potestas Est
Season 2, Episode 5
Airdate	May 17, 2014
Written by	Tony Elliott
Directed by	Helen Shaver
← 2x04 Governed as It Were by Chance	2x06 → To Hound Nature in Her Wanderings
Orphan Black — Season Two

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Ipsa Scientia Potestas Est is the fifth episode of the second season of Orphan Black, and the fifteenth episode overall.

Starring: Tatiana Maslany (Sarah Manning, Cosima Niehaus, Helena, Rachel Duncan), Dylan Bruce (Paul Dierden), Jordan Gavaris (Felix Dawkins), Kevin Hanchard (Arthur "Art" Bell), Evelyne Brochu (Delphine Cormier)

and Maria Doyle Kennedy (Siobhan "Mrs. S" Sadler) (credit only)

Guest Starring: Michiel Huisman (Cal Morrison)

Guest Starring (end credits): Matt Frewer (Dr. Aldous Leekie), Peter Outerbridge (Henrik Johanssen), Skyler Wexler (Kira), Matthew Bennett (Daniel Rosen), Kristin Booth (Bonnie Johanssen), Ari Millen (Mark), Zoé de Grand'Maison (Gracie Johanssen), Kathryn Alexandre (Tatiana Maslany's Acting Double)

Cast: Josh Vokey (Scott), Nicholas Rose (Colin), Diana Salvatore (Bobby), Christy Bruce (Susan Duncan), Cynthia Galant (Young Rachel), Kevin Dennis (Detective), Peter Dillon (Cop)