His work for television and radio is typified by intricate plotting, large casts, frequently dark subject matter and a love of wordplay and surrealism.
The show won a Brighton Festival award and was followed by "Diary of a Madman" (1993), adapted from the novel of the same name by Russian absurdist author Nikolai Gogol.
Duff also appeared in the show as the promiscuous and bitchy gay man Brian, as well as an uncredited role as Moz's frightening, masked neighbour Fist.
He also created and wrote the Sky Arts television series The Nightmare Worlds of H. G. Wells which starred Ray Winstone, Michael Gambon and Rupert Graves; Duff also appeared in the first episode.
Duff wrote and performed the lead roles in his six-part comedy series Stereonation (adapted from the stage show Vinyl Anorak) which was broadcast on BBC Radio 4 in the summer of 1998.
He appeared as a convicted child molester and cult leader in two series of David Cross's dark sitcom The Increasingly Poor Decisions of Todd Margaret (2011) and as a Nazi in the Channel 4 comedy show Totally Tom (2011).
He played greengrocer Mike Greatbatch in Alan Partridge: Welcome to the Places of My Life (2012) and press photographer David Cowgill in Hebburn (2012–2013).
He acted in Exile — an audio drama based on Doctor Who, as well as writing another — Faith Stealer starring Paul McGann.
The label releases limited edition lathe cut singles, with Duff curating the artists, including established names, such as Adi Newton, Danielle Dax, I Monster, David J, Roger Robinson and Graham Lewis, as well as debut vinyl releases from artists including Wrong Circles, Andrew&Lucy, and White Devil Disco.