Willo the Wisp beech wood in Oxfordshire, near the director's home. Kenneth Williams provided voices for all of the characters. The principal narrator, Willo the Wisp, was a blue, floating creature drawn as a caricature of him, while the name refers to the ghostly light will-o'-the-wisp from folklore. The other main characters were Arthur the caterpillar (as a gruff cockney), Mavis Cruet, a plump, clumsy fairy with an erratic, magic wand, and the principal antagonist, Evil Edna, a witch in the form of a walking, talking television set who could zap people with her aerials. Other characters included Carwash, a snooty bespectacled cat
The Late Show (UK TV programme) of "The Old Grey Whistle Test" the programme became one of the few spaces on BBC television for live music performances. The programme originally featured a round-table discussion hosted by Clive James on Friday nights. However this format was dropped after the second series. "The Late Show" pulled in heavyweight popular music acts live or pre-recorded, including Van Morrison, Leonard Cohen, Public Enemy, Joni Mitchell, The Stone Roses, Dick Dale, and Jeff Buckley. At the time, "The Late Show" came under the now defunct Music and Arts Department at the BBC, which also produced the long-form "Omnibus" and "Arena" programmes.