- Nigel Bennett - Dr. Lansing
- Mackenzie Gray - Dr. Sven Vikernes
- Dylan Trowbridge - Les
- Brian Paul - Police Chief
- Jessica Harmon - Jess Swann
- Ian Matthews - Monster
- Emmanuel Kabongo - Jack Fields
- Anthony Grant - Robert Harmidy
- Morgan David Jones - Josh
- Greg Bryk - Bobby
- Jonathan Koensgen - Walker
- Raoul Bhaneja - Paul Permucci
- Taras Lesiuk - Alex Waide
- Samantha Cole - Teresa Tangorra
- Dempsey Bryk - Brock
- Sarah Abbott - Amélie Giroux
- Michael Greyeyes - Jimmy Saint
- Laura Vandervoort - Mila Dubov
- Benz Antoine - Big Dog
- Laura de Carteret - Senator Sasha Giroux
- Bo Martynowska - Elysse Chambers
- Ted Atherton - Senator Smythe
- Jonathan Higgins - General William May
- Val Cole - Anchor #2
- Trish Rainone - Cassie
- Michael James Regan - Uniform #1
- Aniko Kaszas - Woman Cop
- Kandyse McClure - Claire O'Hagan
- Kandyse McClure - Claire O'Hagan (uncredited)
- Charlie Ebbs - Doctor
- Michael Dufays - Orderly
- Rachel Sellan - Donna
- Kristin Shepherd - Anna
- David MacInnis - Agent Harris
- Nicki Burke - Tilly
- Philippe Poirier - Cop (Rodeside Grill)
- Stella Acquisto - News Anchor
- Leah Doz - Dorothy
- Flint Eagle - Blood 1
- Bradley Hamilton - Brendan
- Sara Hinding - Lynne Gill
- Nicole St. Martin - Remy
- Heather Stevenson - Mauled Female
- Troy Feldman - Deer Hunter
- Thomas Mitchell - Lead Hunter
- Brian Bisson - Hunter #2
- Mike Lawrence - Mr. Mendoza
- Nikki Reed - Rachel Thompson
- Nikki Reed - Rachel Thompson (credit only)
- Nick Hoban - Vamp #1
- Matt Connors - Security Guard
- Hardee T. Lineham - Mike Yanov
- Hardee T. Lineham - Detective Mike Yanov
- Joey Belfiore - Young Staffer
- Vince Groulx - Blood #2
- Nneka Elliott - News Anchor
- Morgan Bedard - Man Victim
- Dan Duran - News Anchor
- Dan Duran - Anchor #3
- Allan Dobrescu - Homeless Man
- Clint Butler - Senior Analyst
- Adam Tomlinson - Dixon
- Wayne Ward - Jonas Locke
- Janet Monid - DNS Agent
- Alain Moussi - Gardener
- Keana Bastidas - Chloe
- Elizabeth Saunders - Belinda
- Boyd Banks - Motel Clerk
- Luke Marty - DNS Officer 2
- Austin Ball - Matt Farraday
- Rob Archer - Brutal Man
- Scott Gorman - Male Cop 2 (uncredited)
- Brittany Raymond - First Daughter
- Ephraim Ellis - Charlie
- Drew Carnwath - Dr.Vance
- Hrant Alianak - Doctor
- Joella Crichton - Reporter #2
- Amanda Joy - Vampire Woman
- Boomer Phillips - Another Blood
- Jean Frenette - Car Vamp
- Geoff Meech - Fayne Attacker
- Darryl Flatman - FBI Guy
- Dan MacDonald - Camp Vamp
- Nicolas Grimes - Vampire #1
- Phi Huynh - Vampire #2
- Nick Alachiotis - Vampire #3
- Liam Siebolt - Hospital Cop
- Gordon Harper - Kevin
- Mike Chow - Blood 2
- David D'Lancy Wilson - DNS Officer #1 / Anderson
- Simon Lee Phillips - Officer Prez
- Sydney Ozerov-Meyer - Ava O'Malley
- Sydney Ozerov-Meyer - Ava O'Malley (uncredited)
- Ted Adams
- James Gibb
- Thomas Walden
- Eric Birnberg
- Brad Turner
- David Ozer
Greg Bryk hace el papel de Bobby.
Ian Somerhalder hace el papel de Luther Swann.
Adrian Holmes interpreta a Michael Fayne en la serie.
Jacky Lai hace el papel de Kaylee Vo.
Kimberly-Sue Murray interpreta a Danika Dubov en la serie.
Kyle Breitkopf hace el papel de Desmond Swann.
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