The Riddlers is a British children's programme produced by Yorkshire Television for ITV between 2 November 1989 and 27 August 1998.
The series centred on Marjorie Dawe and the two Riddlers (small humanoid creatures, portrayed by puppets, whose main aim in life was to "riddle things out") named Mossop (voiced by Richard Robinson) and Tiddler (female, but voiced by Mike Gallant), who inhabited her garden at Riddleton End.
When Tiddler had achieved full Riddler status (by getting the morals of twelve stories correctly) she chose to be called Tiddlup at the ceremony.
All episodes were written by Rick Vanes (whose previous work for YTV included Puddle Lane and Mooncat).
Many of the programmes were recorded in Yorkshire Television's studios on Kirkstall Road, Leeds, although some later episodes were filmed on location.