BBC adaptation of Raymond Briggs' children's book. Fungus (voice of Mak Wilson)'s job is to venture above Bogeydom and scare dry-cleaners (a Bogey's name for humans). But on one trip disaster strikes and a dry-cleaner discovers their existence in Bogeydom. The dry-cleaner, Jessica (Clare Thomas), strikes up a friendship with Fungus' children and escapes back home to tell her father George (Martin Clunes) all about it. George then decides to stake-out the entrance to Bogeydom, in order to catch a real-life Bogeyman.

Martin Clunes
as George White

Fay Ripley
as Jane White

Clare Thomas
as Jessica White

Fiona Hogan
as Mildew

Tom Goodman-Hill
as Tony

Jordan Metcalfe
as Mould

Mak Wilson
as Fungus/Stench

Alice Connor
as Mucus

William Todd-Jones
as Gunge/Scab

Kate Lynch
as Septic