- Nicola Posener
- Â Yvonne 18 episodes, 2018
- Simon Phillips
- Â Gerry 18 episodes, 2018
- Deji LaRay
- Â Andrew 18 episodes, 2018
- Norman Black
- Â Professor Keane 18 episodes, 2018
- Michael Ray
- Â General Armstrong / ... 18 episodes, 2018
- Julia Farino
- Â President Margaret Robertson 12 episodes, 2018
- Massimo Dobrovic
- Â Marcus 12 episodes, 2018
- David B. Meadows
- Â Victor 12 episodes, 2018
- Justin Gordon
- Â Phillip / ... 12 episodes, 2018
- Everett
- Â Adam 12 episodes, 2018
- Ken Bressers
- Â General Ross 12 episodes
- Celestine
- Â Security Advisor Michaels 12 episodes
- Shiah Luna
- Â Lucken 9 episodes, 2018
- William McNamara
- Â Dr. Howard 8 episodes, 2018
- Brenda Schmid
- Â Dr. Samantha Mudd 6 episodes, 2018
- Eve Mauro
- Â Marie 6 episodes, 2018
- Sean Sprawling
- Â Max 6 episodes, 2018
- John F. Thomas
- Â Secret Service Agent 6 episodes, 2018
- Estella Warren
- Â Michelle 6 episodes, 2018
- Cindy Pickett
- Â Amanda 6 episodes, 2018
- Bill Oberst Jr.
- Â Rafael 6 episodes, 2018
- Roy Allen
- Â Elder 6 episodes, 2018
- Cynthia Perez
- Â Merissa 6 episodes, 2018
- Don Baldaramos
- Â General Sears 6 episodes, 2018
- Nick Biskupek
- Â Sergeant Bradford 6 episodes
- Anne-Carolyne Binette
- Â Medic White 6 episodes
- Tiffany Blom
- Â Mina 6 episodes
- Jamie Ohlsen
- Â Sergeant Newton 6 episodes
- Glynn Praesel
- Â Senator Joseph Davidson 6 episodes
- Lacy Moore
- Â Defence Minister Donahue 6 episodes
- Angela Bell
- Â Marie 6 episodes
- Rich Paul
- Â Simon 5 episodes, 2018
- Peter Barrett
- Â Matthew 5 episodes, 2018
- David Haydn
- Â Prime Minister Adams 5 episodes, 2018
- Kenney Myers
- Â Kurt 5 episodes
- Danny Polaski
- Â President Aid 5 episodes
- Michael Swatton
- Â Stewart 4 episodes
- Keegan Chambers
- Â Evette 4 episodes
- Peter Woodward
- Â Captain Chris Lowe 3 episodes, 2018
- Ted Jonas
- Â Ramir 3 episodes, 2018
- Michael Coughlan
- Â Sergeant Nicholas Vas 3 episodes
- Anna Nightingale
- Â Sheena 2 episodes, 2018
- Dan Shaked
- Â Nial 2 episodes, 2018
- Miranda O'Hare
- Â Galatea 2 episodes, 2018
- Merissa Porter
- Â British News Journalist 2 episodes, 2018
- Isaiah Dell
- Â Young Adam 1 episode, 2018
- Leo Goodman
- Â New York TV News Journalist 1 episode, 2018
- Kelly Love
- Â Lisa 1 episode, 2018
- Sean Paul Ross
- Â Communications Officer 1 episode, 2018
- Anthony Chisholm
- Â Boardroom Politician 1 episode, 2018
- Carol Gough
- Â Politician 1 episode, 2018
- Art L. Cortez
- Â Vampire Henchmen 2017 1 episode, 2018
- Sanjiv Hayre
- Â Defence Minister 1 episode, 2018
- Jeremy Michael Stage
- Â Secret Service Agent 1 episode, 2018
- David Eby
- Â Secret Service Agent 1 episode
- Paul Thomas Arnold
- Â President Reynolds 1 episode
- Rebecca Lambrusco
- Â Villanelle 1 episode
- Caren MacNevin
- Â Vampire 1 episode
- Emidio Lopes
- Â Frakes 1 episode
- Gina Brown
- Â Wife 1 episode
- Konstadinos Adesina
- Â Secret Service Agent UK 1 episode
- Lindy Pieri
- Â Politician (uncredited) 1 episode, 2018
- Paul Candelent
- Â Self (uncredited) 1 episode