Current •
James Nesbitt as Harry Clayton; a
Detective Inspector working for the Central London Murder Squad •
Sienna Guillory as Eve Alexandri; a mysterious woman who gifts the bracelet to Clayton •
Amara Karan as Suri Chohan; a
Detective Inspector (formerly
Sergeant), who is Clayton's protégé and partner •
Darren Boyd as Steve Orwell; a
Detective Sergeant (formerly
Inspector), who initially believes that Clayton is corrupt •
Stephen Hagan as Rich Clayton; Harry's half-brother and owner of an antiques warehouse •
Omid Djalili as Kalim; an associate of Clayton's and owner of a London strip club (Series 1 and 3) •
Neve McIntosh as Elizabeth Gray;
Detective Superintendent and head of the Murder Squad (Series 3) •
Rupert Penry-Jones as Samuel Blake; a mysterious businessman with connections to
triad gangs (Series 3)
Former •
Eve Best as Anna Clayton; Clayton's estranged wife and a criminal
barrister (Series 1–2) •
Steven Mackintosh as Alistair Winter;
Detective Superintendent and former head of the Murder Squad (Series 1–2) •
Thekla Reuten as Isabella Augustine; the owner of a bracelet identical to Harry's (Series 2) • Leilah de Meza as Daisy Clayton; Harry and Anna's teenage daughter (Series 1-2, guest Series 3) •
Sendhil Ramamurthy as Nikhail Julian; a
prison governor and love interest of Anna Clayton (Series 1–2) •
Jing Lusi as Lily-Anne Lau; owner of the Green Dragon Casino (Series 1–2) •
Jonathan Kerrigan as Jonny; Anna Clayton's new boyfriend (Series 2) •
John Hopkins as Charles Collins; Golding's right-hand man (Series 1) •
Burn Gorman as Doug; police pathologist (Series 1) •
Kenneth Tsang as Freddie Lau; Lily-Anne's father (Series 1) •
Joseph Gatt as Yury Becker; a hitman hired by Golding (Series 1) ==Episodes==