David Mitchell John Taylor Actor Anna Maxwell Martin Lucy Betts-Taylor Actor Dipo Ola DI Russell Carter Actor Sophie Willan Holly Pinder Actor Gerran Howell DC Simon Evans Actor Izuka Hoyle DS Alice Finch Actor Dylan Hughes Henry Betts-Taylor Actor Ralph Ineson Chief Constable Ziegler Actor Dorothy Atkinson DCS Carol Shaw Actor Adam Ali Tour Guide Actor Heidi Berger Katia Actor Ella Bruccoleri Megan Rowlands Actor Paul Chahidi Adrian Tate Actor Julie Dray Tanya Actor Amanda Lawrence Julie Tate Actor Julie Legrand Manon Actor Ivan Oyik Myles North Actor Karen Xiang Yuna Tanaka Actor Mark Slaughter Jordan Halshaw Actor Robbie McKillop Director Georgie Fallon Producer Mark Brotherhood Executive Producer Saurabh Kakkar Executive Producer David Mitchell Executive Producer Kathryn O'Connor Executive Producer Chris Sussman Executive Producer Kenton Allen Executive Producer