Jason Manford (Lieutenant Frank Cioffi), Carley Stenson (Georgia Hendricks), Ore Oduba (Aaron Fox), Rebecca Lock (Carmen Bernstein), Samuel Holmes (Christopher Belling), Leah Barbara West (Niki Harris), Alan Burkitt (Bobby Pepper), Martin Callaghan (Oscar Shapiro), Emma Caffrey (Bambi Bernét), Nia Jermin (Jessica Cranshaw), Adam Rhys-Charles (Daryl Grady), Mark Sangster (Sidney Bernstein), Minal Patel (Johnny Harmon)