- Ian Kershaw
- historical consultant (3 episodes, 2012)
- Joanne King
- picture research (3 episodes, 2012)
- Sally Chick
- researcher (1 episode, 2012)
- Dirk Mellies
- archive (1 episode, 2012)
- Wilfried Mellies
- archive (1 episode, 2012)
- Julia Pietsch
- researcher (1 episode, 2012)
- Fabian Wendler
- researcher (1 episode, 2012)