Guest Stars Patrick Walshe McBride as Sebastian Brudenell Amber Aga as DI Christina Marlowe Sarah Ridgeway as Soozie Honeywell Vicki Pepperdine as Penelope Pincott Timothy West as Johnny Falstaff Gray O'Brien as Ian McClurgy Sheila Steafel as Dora Bentley Ian Hughes as Owain Pincott