- Guy Walters
- Â Self - Author & Historian / ... 21 episodes, 2017-2019
- Joshua Levine
- Â Self - Historian & Author 21 episodes, 2017-2019
- Dominic Selwood
- Â Self - Author & Historian / ... 18 episodes, 2017-2019
- Tom Bateman
- Â Narrator 16 episodes, 2017-2019
- Martin K.A. Morgan
- Â Self - U.S. Military Historian / ... 15 episodes, 2018-2019
- Alexandra Churchill
- Â Self - Historian & Author / ... 12 episodes, 2018-2019
- Andrew Robertshaw
- Â Self - Military Historian 8 episodes, 2018
- Klint Janulis
- Â Self - Historian & Military Vet / ... 6 episodes, 2019
- Stephen Wisdom
- Â Self - Historian 6 episodes, 2017
- Andrew Gough
- Â Self - Journalist 6 episodes, 2017
- Mike Pavelec
- Â Self - Military Historian 6 episodes, 2017
- John Heffernan
- Â Narrator 6 episodes, 2018
- Matthew Green
- Â Self - Historian & Author 5 episodes, 2017
- Kate Vigurs
- Â Self - Historian 4 episodes, 2017
- Michael Wood
- Â Self - Psychologist 4 episodes, 2017
- Nick Pope
- Â Self - Former Analyst, Ministry of Defence 2 episodes, 2017
- Sam Edwards
- Â Self - Historian 2 episodes, 2017
- Edward Shawcross
- Â Self - Historian 2 episodes, 2017
- Alycia Smith Howard
- Â Self - Cultural Historian 1 episode, 2017
