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