Guest Stars Phil Davis as Nigel Fiona Button as Kate Peter Egan as David Crownshaw Kiran Sonia Sawar as Ayesha Kareem Sue Johnston as Marion Crownshaw Deka Walmsley as Sergeant Stone Isaac Vincent-Norgate as Albert Isabelle Lee Pratt as Alexandra Sandra James-Young as Jean Tristan Sturrock as Desmond Ben Bailey Smith as Samuel Lindsay Bennett Thompson as Superintendent Evans Boni Adeliyi as Doctor Ayomide Stephen Evans as Stephen Josh Day as Young PC Sukh Ojla as Sunita