• 
  Dominic Thorburn

  2 episodes, 2018
• 
  Simon Nock

   Himself - Narrator (2014-) (voice)
• 
  Jo Hart

   Victim: reconstruction (2014)
• 
  Ashy Ahmed

  Self - Newsagent Owner
• 
  Craig Brogan

  Self - Detective Constable
• 
  Nicola Graham

  Self - Cousin
• 
  Stuart Grainger

  Self - Detective Sergeant, Police Scotland
• 
  Bruce Grant

  Self - Neighbour

• 
  Maxine McArthur

  Self - Reporter, Clydebank Post
• 
  Lauren Mills

  Self - Best Friend
• 
  Andrew Munro

  Self - Paige's Step-Dad
• 
  Pamela Munro

  Self - Mother of Paige Doherty
• 
  Willie Munro

  Self - Paige's Step-Grandad
• 
  Ron Nisbet

  Self - Neighbour
• 
  David Quinn

  Self - Inspector, Clydebank Police

• 
  Rita Rae

  Self - Glasgow High Court
• 
  Shannon

  Self - Neighbour
• 
  Duncan Sloan

  Self - Detective Chief Superintendent, Police Scotland
• 
  Suzanne Toase

  Self - Narrator
• 
  Robyn Somerville

  Self - Friend of Paige
• 
  Amy Strawhorn

  Self - Owner, Hair Salon
• 
  Nighean Stevenson

  Self - Forensic Scientist