Guest Stars Yani Alekansandrov as Humphrey's Body Richard Durden as Charles Worthing Steve Oram as Terry Ania Marson as Heather Button Ed Kear as Dave Houses Anya McKenna-Bruce as Jemima 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) Mathew Baynton as Mick (Boiler Room Ghost) Ben Willbond as Boiler Room Ghost Simon Farnaby as Boiler Room Ghost Katy Wix as Boiler Room Ghost
