- Neill Alexander
- principal scientific advisor (13 episodes, 2003)
- Belinda Biggam
- researcher (13 episodes, 2003)
- Lawrence Breen
- film researcher (13 episodes, 2003)
- Jeremy Cadle
- production team (13 episodes, 2003)
- John Capener
- researcher (13 episodes, 2003)
- Clare Dornan
- production team (13 episodes, 2003)
- Kensa Duncan
- production coordinator (13 episodes, 2003)
- Kate Finding
- graphic director (13 episodes, 2003)
- Bronagh Hanley
- publicist: animal planet (13 episodes, 2003)
- Roy Livermore
- principal scientific advisor (13 episodes, 2003)
- Nicky Thompson
- graphic director (13 episodes, 2003)
- Paul Valdes
- principal scientific advisor (13 episodes, 2003)
- Jeremy Rayner
- principal scientific advisor (9 episodes, 2003)
- Bruce H. Tiffney
- principal scientific advisor (8 episodes, 2003)
- Karl J. Niklas
- principal scientific advisor (6 episodes, 2003)
- William Gilly
- principal scientific advisor (5 episodes, 2003)
- Stephen Harris
- principal scientific advisor (5 episodes, 2003)
- Stephen R. Palumbi
- principal scientific advisor (4 episodes, 2003)
- Richard Fortey
- principal scientific advisor (2 episodes, 2003)
- Mike Linley
- principal scientific advisor (2 episodes, 2003)
- Leticia Aviles
- principal scientific advisor (1 episode, 2003)
- Philip Currie
- principal scientific advisor (1 episode, 2003)
- Jeffrey Harborne
- principal scientific advisor (1 episode, 2003)