Guest Stars Patrick Walshe McBride as Sebastian Brudenell Darren Evans as Spider Asheq Akhtar as Ajay Matharu Anna Wilson-Jones as Lady Tania Bede Marcus Rutherford as Lee Sandridge Shaniqua Okwok as Helen Nedarson Sean Gleeson as Ron Greenvale Tom Lewis as Dimitri Erasmus Scarlett Murphy as Mia Bede Credit Only Amber Aga as DI Christina Marlowe