Season 3    Episode 21
May 4, 2014    43m    TV-MA
98%
Dire circumstance leads Emily to take extreme measures against both the Graysons and those closest to her.

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Cast of Impetus
  • Emily VanCampEmily Thorne
  • Madeleine StoweVictoria Grayson
  • Joshua BowmanDaniel Grayson
  • Nick WechslerJack Porter
  • Gabriel MannNolan Ross
  • Christa B. AllenCharlotte Grayson
  • Barry SloaneAiden Mathis
  • Henry CzernyConrad Grayson
  • Karine VanasseMargaux LeMarchal
  • Henri EsteveJavier Salgado
  • Linc HandKurt Renner
  • Tyler Jacob MooreDetective Brian Hosko
  • Melanie LewisNanny
  • Nicola LamboReporter
  • Glen WalkerNews Anchor

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