• 
  Helena Kennedy

  2 episodes, 2018
• 
  Michael Mansfield

  2 episodes, 2018
• 
  Mark Stephens

  2 episodes, 2018
• 
  Gillian Pachter

  3 episodes, 2018
• 
  David Emmings

  3 episodes, 2018
• 
  Roderick Bailey

  1 episode, 2018
• 
  Emma Miranda Moore

  3 episodes, 2018
• 
  Marlene Harrington

  3 episodes, 2018

• 
  Duncan Campbell

  3 episodes, 2018
• 
  Brian Hook

  2 episodes, 2018
• 
  Scooter Crick

  3 episodes, 2018
• 
  David Bickford

  2 episodes, 2018
• 
  Richard Whittam

  2 episodes, 2018
• 
  Elizabeth Butler-Sloss

  Self
• 
  Louise Cherrington

  Self - Ex-Metropolitan Police Homicide Detective

• 
  Simon Davey

  Self - Detective
• 
  Ken German

  Self - Ex-Hampstead Policeman
• 
  Fleur James

  Self - Daughter of Edward Cussen
• 
  Mark Stephens

  Self - Solicitor
• 
  Laurie Manifold

  Self - Retired Crime Reporter
• 
  Monica Weller

  Self - True Crime Author
• 
  Frank Newsome

  Self
• 
  Victor Mischon

  Self