Cast
Series cast summary:
  Amy Jo Johnson  ...  Jules Callaghan (63 episodes, 2008-2012) 
  Hugh Dillon  ...  Ed Lane (63 episodes, 2008-2012) 
  David Paetkau  ...  Sam Braddock (63 episodes, 2008-2012) 
  Enrico Colantoni  ...  Sgt. Gregory Parker (63 episodes, 2008-2012) 
  Sergio Di Zio  ...  Mike Scarlatti (62 episodes, 2008-2011) 
  Michael Cram  ...  Kevin 'Wordy' Wordsworth (51 episodes, 2008-2011) 
  Tattiawna Jones  ...  Winnie Camden (38 episodes, 2009-2011) 

Storyline

When the Strategic Response Unit arrives, the rules change. The bad guy's caught - he just doesn't know it yet. The SRU, inspired by Toronto's Emergency Task Force, is a handpicked team of elite cops. High risk is their business and these men and women do it all: rescue hostages, bust gangs, defuse bombs. Talk down suicidal teens. Protect the Pope. They handle state-of-the-art weapons - sniper rifles, flash-bang grenades, tasers. They climb the sides of buildings. See through walls. But they're different from other SWAT teams. Because their arsenal also includes a gift for words. A knowledge of human intuition. An instinct for when it's time to negotiate - and when the 'solution' calls for something more. On the scene, they're in charge. No one knows their job better. SRU Constables outrank senior Inspectors - and the Inspectors don't like it...