First broadcast 23rd/24thy May 2022.<br /><br />Sam Ryan recruits the Lyell team to investigate the assassination of the health secretary, but Nikki is unsure whether Sam knows more than she's letting on.<br /><br />Emilia Fox - Dr. Nikki Alexander<br />David Caves - Jack Hodgson<br />Genesis Lynea - Dr. Simone Tyler<br />Amanda Burton - Professor Sam Ryan<br />Emma Beattie - Alice Reynolds<br />Gaia Wise - Jo Reynolds<br />Hugh Quarshie - Jomo Mashaba<br />Díana Bermudez - Rosa Hernandez<br />Gina Bramhill - Fiona Mashaba<br />Lloyd Everitt - David Mashaba<br />David Leon - Oscar Harris<br />Ian Puleston-Davies - DSU Ronnie Boyle<br />Shireen Farkhoy - DS Martine Chalal<br />Tom Benedict Knight - Dan Clemence<br />Stephen Donald - Charles Black<br />Jacqueline Oceane - Assassin #1<br />Will Bowden - Assassin #2<br />Matthew Gravelle - Tom Faulkner<br />Andrea Michele Adams - Unitas Press Conference Attendee<br />Manoj Anand - Unitas Press Conference Attendee<br />Bobby Bedi - Unitas Press Conference Attendee<br />Christine B. Blyth - Unitas Press Conference Attendee<br />Darryl Bradford - Unitas Press Conference Attendee<br />Lee Goode - Unitas Press Conference Attendee<br />Michelle Jeffers - Unitas Press Conference Attendee<br />Jatinder Rehal - Unitas Press Conference Attendee<br />Adrian Dobson - Hotel Doorman<br />Shaun Maddocks - Police Officer PC2189<br />Dave Simon - Cam Raman<br />Gediminas Adomaitis - Andrei Karpov<br />Diane Axford - Mary Butcher<br />Vera Horton - Sonia Karpov<br />Ian Puleston-Davies - DSU Ronnie Boyle
