• 
  Kevin Eldon

  Martin Bickerstaff / Martin
• 
  Himesh Patel

  Nitin
• 
  Jo Brand

   Rose Denby (unknown episodes)
• 
  Alan Davies

   Alastair Kavanagh (6 episodes, 2016)
• 
  Isy Suttie

   Nat (6 episodes, 2016)
• 
  David Mumeni

   Frank (1 episode, 2016)
• 
  Sophie Sanderson

   Charlie (3 episodes, 2016)
• 
  Jonathan Pointing

   Rudi (1 episode, 2016)

• 
  Anick Wiget

   Anick Social Worker (6 episodes, 2016)
• 
  Georgie Glen

   Denise (6 episodes, 2016)
• 
  Ricky Grover

   Kev (6 episodes, 2016)
• 
  David Reed

   PC Roy (6 episodes, 2016)
• 
  Nick Hancock

   Lee (4 episodes, 2016)
• 
  Sara Powell

   Cass (4 episodes, 2016)
• 
  Rasmus Hardiker

   Telephone caller / ... (3 episodes, 2016)

• 
  Paul Charlton

   PC Harris (4 episodes, 2016)
• 
  Mandeep Dhillon

   Telephone caller / ... (3 episodes, 2016)
• 
  Ellie White

   Telephone caller / ... (3 episodes, 2016)
• 
  London Hughes

   Telephone caller / ... (3 episodes, 2016)
• 
  Amy Jayne

   Rose's daughter / ... (3 episodes, 2016)
• 
  Alex Lanipekun

   Telephone caller (3 episodes, 2016)
• 
  Zaak Conway

   Rose's son / ... (3 episodes, 2016)
• 
  Greg Bennett

   Child Services Social Worker (6 episodes, 2016)
• 
  Morwenna Banks

   Ingrid (6 episodes, 2016)
• 
  Jacob Scipio

   Phone caller (6 episodes)
• 
  Ed Gaughan

   Phone caller (6 episodes)
• 
  Lolly Adefope

   Mimi (6 episodes)
• 
  Will Smith

  5 episodes, 2016-2018