Guest Stars Matthew Gravelle as Tom Faulkner Hugh Quarshie as Jomo Moshaba Gina Bramhill as Fiona Moshaba Lloyd Everitt as David Moshaba Sutara Gayle as Gloria Mason-Walker Duncan Preston as DI Johnny Campbell Christine Bottomley as Florence Clarke Nadia Albina as Emma Caulfield Ella Schrey-Yeats as Ellie Clarke Laura Marcus as Mia Clarke Adam Clayton-Smith as Richard Clarke Paul Thornley as Hugh Caulfield Simon Lipkin as Darryl Simmonds Lainy Boyle as Desk Officer