David Thewlis Ashley Smith Actor Jason Watkins Peter Hammond Actor Posy Sterling Julie Preen Actor Tom McKay Mark Preen Actor Alex Jennings Sir James Bevan Actor Asim Chaudhry Mickey Lazarus Actor Alice Lowe Susan Davy Actor Chanel Cresswell Hanna Swift Actor Vicki Pepperdine Lucy Hunt Actor Charlotte Ritchie Sophie Harrison Actor Juliet Cowan Debbie Henderson Actor Stephen Wight Alex Sinclair Actor Andrew Havill Richard Aylard Actor Jon Culshaw Alan Wrigley, MP Actor Sarah Durham Julia Simpson Actor Mike Noble Reuben Santer Actor Stephanie Hyam Hannah Rodger Actor Georgie Henley Laura Monbiot Actor Ellie White Lizzie Millhouse Actor Shubham Saraf Martin Samuels Actor Tom Walker Guy Kingsnorth Actor Anthony Calf Charles Hale-Barlow Actor Lucia Keskin Poppi Humphries Actor Nicole Ansari Cox Djaleh Alizadeh Actor Naomi Battrick Leonie Lauchlin Actor Gavi Singh Chera Dr Ismail Akhtar Actor Alice Orr-Ewing Ottilie Fitzwilliam Actor Elizabeth Berrington Sarah Harrison Actor Sunil Patel Crime Officer Actor Mark Arends David Marwood Actor Craig Parkinson John Bull Actor Tom Durant-Pritchard Chris Hines Actor Joseph Bullman Director, Writer Laura McCutcheon Producer Meeshan Saxena Producer Aysha Rafaele Executive Producer