Guest Stars Gina Gangar as Female Guest Toby Longworth as Male Guest Andrew Spooner as Documentary Expert Atilla Akinci as Voice Coach Nisha Aaliya as Documentary Presenter Uncredited Lolly Adefope as Boiler Room Ghost Jim Howick as John (Boiler Room Ghost) Martha Howe-Douglas as Boiler Room Ghost Laurence Rickard as Nigel (Boiler Room Ghost) Ben Willbond as Boiler Room Ghost Mathew Baynton as Mick (Boiler Room Ghost) Simon Farnaby as Boiler Room Ghost