Guest Stars Lily Loveless as Anna Sophie Wu as Jay Robbie Gee as DCI Armstrong Francis Magee as Dr. Tremlett Theo Barklem-Biggs as DC Firth Chris Mason as Steve Jenn Murray as Natalie Eleanor Matsuura as Vicky Ian Hanmore as Polus Lloyd Hutchinson as Superintendant Clement Sophia La Porta as Tracy Philip Bird as Mr. Peterson Brandon Robinson as Fred Taylor Zack Morris as Sam Grielson James Greene as Eric