Katherine Kelly
as Detective Natalie Hobbs
Lee Ingleby
as DC Tony Myerscough
Rochenda Sandall
as Detective Vanessa Warren
Shubham Saraf
as DC Kyle Petit
Mark Stanley
as DC Hugo Duffy
Nicholas Pinnock
as DI Paul Ottager
Aymen Hamdouchi
as DS Jamie Reiss
David Tennant
as Dr. Edgar Fallon
Hayley Atwell
as Stacey Doyle
Lolita Chakrabarti
as Anita Baines
Mark Quartley
as Jeremy Nicholson
Kevin Eldon
as Michael Walker
Isabella Laughland
as McRae
Clare-Hope Ashitey
as Adele Addo
Youssef Kerkour
as Jamaal "Jay" Muthassim
Rakhee Thakrar
as Nasreen Shah
Sophie Okonedo
as Julia Bryce
Kit Harington
as Alex Daniels
Jyuddah Jaymes
as Henry Regis
Sharon Horgan
as Danielle Dunne
Kunal Nayyar
as Sandeep Singh
Annette Badland
as Donna Swift
Amanda Drew
as Roberta Laing