Guest Stars Patrick Walshe McBride as Sebastian Brudenell Tomos Eames as DS Joe Keeler Amber Aga as DI Christina Marlowe Asheq Akhtar as Ajay Matharu Julia Deakin as Genevieve Shakespeare Melanie Gutteridge as Veronica Vinten Nigel Whitmey as Clive Brenton Rob Leetham as Jack Abi McLoughlin as Diane Nia Gwynne as Janice Bardolph Quinn Patrick as Wedding Registrar Anthony Adjekum as Duane Tatsu Carvalho as Thiago Cabrera Amey Woodhall as Stacey