BBC announce Helena Bonham Carter and David Mitchell join the stellar cast for The Cleaner

The cast for The Cleaner includes: Helena Bonham Carter (The Crown), David Mitchell (Upstart Crow, Back), Stephanie Cole (Still Open All Hours), Donald Sumpter (Game Of Thrones), Shobu Kapoor (Four Weddings And A Funeral), Ruth Madeley (Years And Years), Layton Williams (Everybody’s Talking About Jamie musical), Zita Sattar (Casualty), Georgie Glen (The Crown, Call The Midwife), Bill Skinner (Ted Lasso) and Esmonde Cole (Still So Awkward).