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
Mavis Wilton she whimpered seemed to begin with 'Ooh Derek' and end with: 'Well, I don't really know, but he suggested that she had graced some of "Coronation Street's" "finest scenes", pointing to Mavis and Rita's spoof of a Laurel and Hardy act as one example. The character received various accolades over the years. At the "TV Times" "Corrie Awards", Mavis and Derek were nominated for "Best Couple", and Susannah Clapp listed Mavis in "The Observer"'s "10 best "Coronation Street" characters" list. Clapp said "Thelma Barlow played [Mavis], with exceptional delicacy, in a variety of pastel pinnies, for 26 years." She concluded