• 
  Tanya Reynolds

  Teresa Benelli
• 
  Emilia Fox

   Sam (4 episodes, 2016)
• 
  Dawn French

   Gina (4 episodes, 2016)
• 
  Iain Glen

   Leo (4 episodes, 2016)
• 
  Sheila Hancock

   Mimi (4 episodes, 2016)
• 
  Obi Abili

   Father Norton (4 episodes, 2016)
• 
  Cesare Taurasi

   Franco (3 episodes, 2016)
• 
  Hetti Bywater

   Daisy (3 episodes, 2016)

• 
  Risteard Cooper

   James Harley (2 episodes, 2017)
• 
  Jonathan Jaynes

   Clyde Palmer (2 episodes, 2016-2017)
• 
  Mark Letheren

   Dio Tremayne (3 episodes, 2017)
• 
  Vinette Robinson

   Rosa (3 episodes, 2016-2017)
• 
  Ruairi O'Connor

   Michael Vincent (4 episodes, 2016-2017)
• 
  Kemi-Bo Jacobs

   Suzy (3 episodes, 2016-2017)
• 
  Franco Nero

  4 episodes, 2017-2018

• 
  Pandora Colin

  3 episodes, 2017-2018
• 
  Peter Pacey

  2 episodes, 2016-2017
• 
  Christian Roe

  3 episodes, 2017-2018
• 
  Aidan McArdle

  2 episodes, 2017-2018
• 
  Muirenn Brady

  3 episodes, 2017-2018
• 
  Aaron Anthony

  4 episodes, 2017-2018
• 
  Vincent Regan

  Mason Elliot
• 
  Rhashan Stone

  Marc Wilson
• 
  Cassie Clare

  Rhiannon
• 
  Claudia Harrison

  Dr. Janice Woods