Guest Stars Marvin Humes as Robbie Waring Tilly Blackwood as Emma Waring Tessa Peake-Jones as Maggie Latham Rory Copus as Owen Latham Stephanie Leonidas as Sarah Newman Tom Knight as Andrew Newman Kate Redshaw as WPC Daniels Kavi Shastri as Asaf Alvin Chitroda as Ranjit Steven Webb as Jamie Newman