• 
  Spy Egret

  Self
• 
  Spy Meerket

  Self
• 
  David Tennant

   Himself - Narrator (5 episodes, 2017)
• 
  Spy Orangutan

  Self
• 
  Spy Hippo

  4 episodes, 2017-2020
• 
  Spy Croc Hatchling

  Self
• 
  Birute Galdikas

  Self
• 
  Philip Dalton

  Self - Producer

• 
  Val Jones

  Self
• 
  Michael W. Richards

  Self - Cameraman
• 
  Frederique Olivier

  Self
• 
  Kira Cassidy-Quimby

  Self
• 
  Richard Jones

  Self - Cameraman
• 
  Rob Pilley

  Self - Producer
• 
  Jill Pruetz

  Self